저널

무게 측정 및 단위 변환 가이드

요리, 배송, 일상에서 무게를 재고 단위를 변환하며 정확하게 측정하는 데 도움이 되는 실용적인 팁을 확인하세요.

디지털 보석용 저울 위에 놓인 원형 나석 다이아몬드로, 한 개의 보석을 캐럿에서 그램으로 환산한 무게를 보여 줍니다.
carat to gramsdiamond carat weight

캐럿을 그램으로 쉽게 환산하기, 다이아몬드 크기표 포함

1캐럿의 무게는 정확히 0.2그램, 즉 200밀리그램입니다. 캐럿을 그램으로 바꾸는 전체 환산표, 밀리미터 기준 원형 다이아몬드 크기표, 같은 캐럿의 다이아몬드와 오팔이 완전히 다른 크기로 보이는 이유를 알아보세요.

디지털 주방 저울 위의 바나나가 그램 단위 무게를 보여 주는 모습
banana weighthow much does a banana weigh

바나나 한 개의 실제 무게는 얼마일까? 그램과 칼로리

중간 크기 바나나는 과육이 약 118그램이고 105칼로리이며, 껍질을 포함한 전체 무게는 150그램에 가깝습니다. 크기별 그램 수와 칼로리, 탄수화물, 1파운드에 해당하는 바나나 개수를 모두 정리했습니다.

쌓아 놓은 배송 상자 옆 우편 저울에 갈색 소포가 놓여 있으며 USPS 중량별 배송 요금을 보여 줍니다.
usps shipping rates by weightusps ground advantage

USPS 중량별 배송 요금, 2026년에 약 16% 상승

USPS 중량별 배송 요금은 세 차례 인상으로 2026년에 약 16퍼센트 올랐습니다. Ground Advantage의 온스 및 파운드별 비용, 구역과 부피 중량이 청구액에 미치는 영향, 결제 전에 소포 무게를 재는 방법을 알아보세요.

열린 땅콩버터 병 옆 디지털 주방 저울에서 땅콩버터 1회 제공량을 측정하는 모습
peanut butter serving size2 tablespoons of peanut butter

땅콩버터 1회 제공량은 2큰술, 즉 32그램입니다

땅콩버터 1회 제공량은 2큰술, 약 32그램이지만 숟가락으로는 이 양을 정확히 맞추기 어렵습니다. 한 숟갈에 실제로 몇 그램, 몇 칼로리, 단백질이 얼마나 들어 있는지, 그리고 왜 눈대중보다 저울이 나은지 알아보세요.

다진 소고기 1인분 크기를 보여 주는 주방 저울 옆의 생 다진 소고기 1파운드
ground beef serving sizeground beef portion size

다진 소고기 1인분 크기와 1파운드로 실제 몇 명이 먹을 수 있는지

다진 소고기 1인분은 익힌 상태로 3온스, 85그램이며 생고기로는 약 4온스입니다. 1파운드 한 팩이 4인분이 되는 이유, 타코와 버거용으로 1인당 얼마나 사야 하는지, 각 분량의 실제 비용을 알아보세요.

밀가루와 달걀이 놓인 디지털 주방 저울로, 가정에서 그램을 온스로 환산하는 모습을 보여 줍니다.
grams to ounceshow many grams in an ounce

1온스는 몇 그램일까? 그램-온스 환산표 포함

1온스는 28.35그램입니다. 이 주방 가이드에서 정확한 수치, 간단한 그램-온스 공식, 전체 환산표, 중량 온스와 액량 온스의 차이를 확인하세요.

작은 저울 옆에서 흰 봉투에 우표를 붙이는 손. 편지를 보낼 때 필요한 우표 수를 보여 줍니다.
how many stampsmail a letter

2026년에 편지를 보낼 때 필요한 우표 수 계산하기

2026년에는 Forever 우표 한 장으로 1온스짜리 편지를 보낼 수 있지만, 종이가 몇 장만 늘어도 계산이 달라집니다. 집에서 봉투 무게를 재고, 비용을 더 내지 않으면서 필요한 우표 수를 알아내는 방법을 소개합니다.

A heaped scoop of protein powder beside an open tub on a kitchen counter
protein powder scoopscoop of protein powder grams

Here's How Much Is in One Scoop of Protein Powder

A scoop of protein powder holds about 25 to 35 grams, but only 24 to 28 grams of that is protein. Here is what one scoop really weighs, how many tablespoons it equals, and how to measure a serving when the scoop goes missing.

A weighed pasta serving size of dry spaghetti and penne on a kitchen counter
pasta serving sizehow much pasta per person

Pasta Serving Size: How Much Dry Pasta Per Person

How much dry pasta per person? Plan on 100 grams for a main course and 56 grams for a side. This guide breaks down pasta serving size by weight, cups, and shape, plus a no-scale coin trick for spaghetti.

Assortment of US coins arranged by denomination showing coin weights in grams
coin weightsweight of a quarter

Weight of a Quarter in Grams, Plus Every US Coin

A US quarter weighs 5.67 grams. This guide gives the weight of every US coin in grams, what a full roll weighs, and how to count your change by weight instead of counting it by hand.

A one troy ounce gold coin on a digital jewelry scale showing how many grams in a troy ounce.
troy ouncegrams to ounces

How Many Grams in a Troy Ounce of Gold and Silver?

A troy ounce of gold is 31.1035 grams, not the 28.3495 grams on your kitchen scale. Here is how many grams in a troy ounce, why gold and silver use it, and how to weigh metal at home without getting shorted.

A clear one gallon jug of water on a kitchen counter showing how much a gallon of water weighs.
water weightgallon of water weight

Water Weight: How Much Does a Gallon of Water Weigh?

A US gallon of water weighs about 8.34 pounds, or 3.78 kilograms. Here are the real weights for a cup, liter, gallon, and five gallon jug, why temperature shifts them, and how to weigh water fast without a scale.

Chicken eggs and a kitchen scale illustrating egg protein by weight
egg proteinhow much protein in an egg

Egg Protein by Weight: How Much Protein in an Egg

A large egg carries about 6.3 grams of protein and 71 calories, and the number rises with weight. See the protein, calories, and grams for every USDA egg size, plus how to weigh eggs without a scale.

Uncooked white rice in a bowl with a measuring cup and digital scale showing rice portion size by weight.
rice portion sizehow much rice per person

Rice Portion Size: Grams Per Person and Per Cup

A level cup of dry white rice weighs about 185 g, and it roughly triples once cooked. Here are the real gram numbers for rice portion size, how much rice per person, and how to weigh a serving with no scale.

Butter sticks and a measuring cup on a marble counter illustrating a butter conversion chart
butter conversion chartgrams in a stick of butter

Butter Conversion Chart: Grams in a Stick of Butter

A stick of butter is 113 grams, but the wrapper rarely says so. This butter conversion chart lays out sticks, cups, tablespoons, and grams, plus how a US stick compares to a European 250 gram block.

A cup of flour in grams weighed on a kitchen scale beside a bowl of all-purpose flour and a measuring cup
cup of flour in gramscups to grams flour

A Cup of Flour in Grams: All-Purpose, Bread, Cake

A cup of all-purpose flour weighs about 120 grams, but scooping can push it past 155. Here is a cup of flour in grams by type, a cups to grams chart, and the spoon and level trick that keeps every bake consistent.

Packed suitcase sitting on a bathroom scale to check the checked baggage weight limit before a trip
checked baggage weight limitweigh luggage without a scale

Checked Baggage Weight Limit: Weigh Bags Without a Scale

The checked baggage weight limit is 50 pounds on most airlines, and slipping over costs 30 to 200 dollars per bag. Here is how to weigh luggage without a scale at home, plus the household weights and carry on rules that keep you under the line.

Two raw chicken breasts on a digital kitchen scale showing a chicken breast portion size in grams
chicken breast portion sizechicken breast serving

Chicken Breast Portion Size in Grams, Raw and Cooked

A raw chicken breast runs 180 to 200 grams, but a cooked serving is closer to 85 to 140 grams. Here is every weight in grams, raw and cooked, plus portion sizes for beef, fish, and the protein targets you can actually plate.

Assortment of colorful ground spices in small white ramekins on a dark slate kitchen surface, illustrating a guide to spice weights in grams per teaspoon
spice weightsgrams per teaspoon

Spice Weights: How Many Grams in a Teaspoon?

A teaspoon of garlic powder weighs 3.5 g; dried oregano weighs just 0.9 g. This guide gives exact gram weights per teaspoon and tablespoon for common spices, salt types, and leaveners, plus quick answers to the measurement questions cooks search most.

Three measuring cups filled with granulated sugar, brown sugar, and confectioners sugar showing different gram weights for the same cup measurement
sugarbaking conversions

Cup of Sugar in Grams: Granulated, Brown, and Confectioners

A cup of sugar in grams is 198 g for granulated, 213 g for packed brown, and 113 g for confectioners. Exact weights for whole and fractional cups, plus why the same cup gives you three different numbers.

Digital kitchen scale showing 18 grams of ground coffee next to an espresso portafilter basket on a white marble counter
brew ratio gramsespresso dose

Coffee Dose by Weight: Brew Ratios in Grams for Every Method

Most coffee recipes list tablespoons, but grams are what actually control flavor. Here are the exact gram doses for espresso, pour-over, French press, AeroPress, and cold brew.

Hands weigh an opaque perfume bottle on a digital scale, with notes showing current minus empty equals remaining.
perfumefragrance

How Much Perfume Is Left, Use Weight Math

If you cannot see the fill line in an opaque perfume bottle, you can still estimate what is left using simple weight math. Learn how to separate bottle weight from juice weight, convert grams to ml, and get a quick estimate even without a physical scale using a phone photo weight estimate.

Two LEGO minifigures compared on a precise 0.01 g scale on a workshop desk to verify authenticity by weight.
lego minifigure weight gramshow to spot fake lego minifigures

Fake LEGO Minifigs? Use Weight to Verify

A fast, practical way to spot counterfeit LEGO minifigures is to check weight. This guide shows what to weigh, the gram ranges that matter, and how to estimate weight from phone photos when you do not have a scale.

Kitchen table flat lay with a digital scale weighing laundry detergent in grams, conversion notes, and laundry items in the background.
laundrydetergent-dosage

Laundry Detergent Dosage in Grams, Stop Overusing

Most detergent caps nudge you to overpour. This guide gives a grams-based dosing range for HE and standard washers by load size, soil level, and water hardness, plus a simple way to estimate grams from a photo when you do not have a scale.

Hands in a garage workshop measuring and sorting scrap copper wire by gauge, with an iPhone and notes used to estimate weight before selling.
scrap copper wire weight estimatecopper wire weight per foot chart

Scrap Copper Wire: Estimate Weight Before Selling

Estimate scrap copper wire weight at home using simple measurements or your iPhone camera, understand bare bright vs insulated grades, and figure out whether stripping wire is worth the time before you head to the scrapyard.

Hands weighing a Fiestaware plate on a digital scale with other plates for comparison and a backstamp visible, illustrating using weight checks to screen for vintage pieces.
vintage fiestaware identificationfiestaware weight vs modern

Is It Vintage Fiestaware? Use Weight Checks

Weight is one of the fastest clues for spotting vintage vs modern Fiestaware when you are thrifting, buying online, or listing items to ship. Learn what weight differences to look for, how markings and feel back up your guess, and how to estimate weight from photos with your phone.

Hands compare two similar-sized wine glasses by weight on a kitchen table with mixed stemware and a notepad.
crystal-vs-glassstemware

Crystal or Glass? Identify Stemware Using Weight Clues

Not sure if that thrifted wine glass is real crystal or just regular glass? Use weight clues plus a few quick, low-risk at-home checks to identify crystal stemware and avoid overpaying, even when you do not have a physical scale handy.

Hands using a digital scale to weigh bath bomb powders in a craft room, with jars of ingredients and a cups-to-grams cheat sheet, plus the text “Grams Over Cups”.
DIY self care craftingbath bombs

DIY Bath Bomb Ratios: Convert Cups to Grams

Stop guessing with cups. This guide gives practical bath bomb ratios in grams, common cup to gram conversions for baking soda and citric acid, and a simple way to standardize batches, even if you do not own a kitchen scale.

Hands using a phone to estimate the weight of polymer clay earrings next to a US nickel on a craft workbench before baking.
polymer clay earrings weightestimate clay amount for earrings

Polymer Clay Earrings: Estimate Grams Before You Bake

Want consistent, comfortable polymer clay earrings without guessing? This guide gives practical grams-per-earring targets, a simple thickness and size framework, and an easy way to estimate clay weight from a photo so you can price, list, and ship with confidence.

Hands using the finger-circle trick to portion spaghetti next to bowls of penne and fusilli on a wooden kitchen table, with a text overlay about pasta portions in grams.
pasta portion size gramshow much does dry pasta weigh

No-Scale Pasta Portions: Spaghetti, Penne, Fusilli in Grams

No kitchen scale? You can still portion spaghetti, penne, and fusilli accurately enough for meal prep and tracking. This guide gives practical “hand and cup” methods, dry-to-cooked weight expectations, and a simple photo-based way to estimate grams fast.

Wedding invitation suite on a digital scale with stamps and a laptop showing USPS letter postage rules, illustrating how to estimate weight before mailing.
wedding invitation postage weighthow many stamps for wedding invitations

Wedding Invitation Postage Math: Estimate Weight Before Mailing

Use simple postage math to predict wedding invitation weight before you mail, so you can choose the right stamps, avoid postage-due surprises, and know when USPS nonmachinable or square envelope rules apply.

Workshop shipping station with a digital scale weighing a bag of mixed bolts, nuts, and washers next to a padded mailer and sorting hands.
nuts and bolts weight chartscrew weight in grams

Nuts and Bolts Weight Cheat Sheet for Shipping

A practical way to estimate screw, nut, and bolt weight per piece or in bulk so you can print accurate shipping labels and sanity-check inventory counts, even when you do not have a scale.

Shipping scale weighing boxed sneakers with packing materials and a laptop in the background for postage estimation.
boxed sneakers weightshoe shipping weight estimate

How Much Do Boxed Sneakers Weigh for Shipping

Need a realistic boxed sneaker shipping weight estimate without a scale? This guide gives weight ranges in grams and ounces for common sneaker types, then shows how to estimate the total shipped weight including shoebox, outer box, and packing so you can buy labels confidently on USPS, eBay, Mercari, or Pirate Ship.

Hands estimating gold ring weight at a kitchen table using coins, calculator, and spot price per gram conversion notes.
pawn shop gold offer calculatorhow much do pawn shops pay for gold

Pawn Shop Offer Math: Know Your Gold Weight

Use a simple pawn shop gold offer calculator approach: estimate your jewelry’s grams, convert karat to pure gold content, compare spot price vs melt value, and walk in with a checklist that helps you avoid lowball offers.

Craft-room workbench with gemstone beads on a gram scale and caliper, showing how bead size relates to weight in grams.
gemstone bead weight chart8mm bead weight in grams

How Heavy Are Gemstone Beads? Size to Grams

Need to estimate bracelet or necklace weight fast? This guide shows how gemstone bead size translates to grams, why quartz and glass can weigh differently at the same mm size, and how to estimate jewelry weight from photos when you do not have a scale.

Smartphone taking an overhead photo of a muffin on a plate with a reference card and ruler, illustrating how angle and setup affect phone scale app accuracy.
phone scale apps accuracyphoto weighing accuracy myths

Phone Scale Apps: 9 Myths That Ruin Accuracy

Phone scale apps can be surprisingly useful, but common beginner mistakes make results feel random. This myth-busting guide explains what actually affects photo weighing accuracy, how to fix inconsistent estimates fast, and when you still need a real scale.

Matcha being weighed on a digital gram scale beside an iced matcha latte, showing precise dosing to prevent bitterness.
matchamatcha latte

Matcha by the Gram: Stop Bitter Lattes

If your matcha latte tastes bitter one day and weak the next, it is usually a dosing problem. This guide gives practical matcha grams-per-serving ranges, teaspoon-to-grams estimates, caffeine-per-gram math, and a repeatable photo setup to estimate powder weight when you do not have a scale.

Hands feeding sourdough starter in a jar without a scale, using texture cues, with flour and water nearby and text overlay.
sourdough starterstarter feeding ratio

Sourdough Starter Feeding Without Scale: Gram Ratio Shortcuts

No kitchen scale? You can still keep a predictable sourdough starter by using simple ratio habits, volume-to-grams shortcuts, and one consistency target you can recognize every time. Here is a practical system that reduces discard and gets you back to weight-based baking fast.

Hands at an outdoor estate sale inspecting a spoon’s 925 sterling hallmark among mixed silverware, with magnifier and phone nearby, emphasizing sterling vs silver plate identification.
silverwareestate sales

Estate Sale Silverware: Value It by Weight

Learn how to tell sterling from silver plate using common hallmarks like 925 and EPNS, then estimate real-world value at an estate sale with quick weight math, troy-ounce conversions, and a simple melt-value formula you can do on your phone.

Cast iron skillets from 8 to 16 inches arranged on a wooden kitchen table with a digital scale and measuring tape, illustrating typical weight ranges by size.
cast iron skillet weightcast iron pan weight chart

Cast Iron Skillet Weight Chart for Every Size

A practical, size-by-size cast iron skillet weight reference, plus real-world ways to estimate weight from photos for shipping, buying vintage pans, and portioning food when you cook by weight.

Kitchen scene showing a digital scale reading ounces and a measuring cup marked in fluid ounces to illustrate recipe conversions.
ounces vs fluid ounces differenceoz vs fl oz meaning

Ounces or Fluid Ounces, Convert Recipes Correctly

Confused by oz vs fl oz on recipes and labels? Learn the real difference between weight and volume, why 8 fl oz is not automatically 8 oz, and how to convert fluid ounces into grams for water, milk, oil, and more without ruining a bake.

Kitchen scale with bowl of flour showing 842 g, a finger near the tare button, and a note about net equals gross minus tare.
tare weightkitchen scale

Forgot to Tare? Estimate Container Weight Fast

No tare button, no problem. Learn what tare weight means, get quick empty-weight estimates for common kitchen and shipping containers, and use photo-based weight estimation plus a few sanity checks to reliably calculate net weight in grams.

Bakery package on a digital scale showing 4.01 oz with shipping label and packing supplies, demonstrating weight tier boundaries to avoid postage adjustments.
shipping label weight roundingUSPS postage adjustment

Shipping Label Weight Rounding Rules, Avoid Postage Adjustments

Carrier weight tiers are unforgiving: being off by even 0.1 oz can trigger USPS postage adjustments or postage due. This guide explains the rounding reality behind common shipping services and gives you a practical, packaging-included workflow to estimate weight accurately, even without a physical scale.

Hands weigh a gold chain on a digital jewelry scale with loupe and calipers nearby, illustrating weight checks for hollow chains.
jewelrygold

Is Your Gold Chain Hollow? Weight Checks

Not sure if that gold chain is hollow, semi-hollow, or solid? A quick gram check can catch listings that look great in photos but feel suspiciously light in real life. Here is a practical way to sanity-check weight by length, width, and style, plus the exact questions to ask sellers before you buy.

Kitchen table scene using a banana on a scale as a reference weight with other produce and notes for quick grocery weight estimates.
estimate produce weight without a scalehow much does a banana weigh in grams

Banana Math for Groceries: Quick Weight-Per-Piece Cheatsheet

A practical, in-store cheatsheet for estimating produce weight per piece in grams and pounds, plus simple “banana math” to predict cost, avoid overbuying, and enter more accurate weights in grocery delivery apps.

Jeweler measuring sterling silver sheet thickness with calipers beside a notepad showing density and a quick weight formula, with workshop tools in the background.
sterling silverjewelry making

How Heavy Is Sterling Sheet? Gauge to Grams

Need to quote a jewelry job or price a shipment without a scale? Use sterling silver density plus sheet thickness (gauge) and your cut dimensions to estimate weight in grams or ounces, fast and reliably.

Meal prep scene with digital scale comparing dry rice and cooked rice weights, highlighting a multiplier ratio.
cooked rice vs uncooked rice weightdry to cooked rice conversion grams

Cooked vs Dry Rice Weights: Meal Prep Math

Get a reliable dry to cooked rice weight conversion in grams and ounces, plus portion sizes you can repeat for meal prep even when you do not have a physical scale.

Home office desk scene with hands weighing a gold bracelet in pennyweight and converting dwt to grams, highlighting a pricing trap before selling.
pennyweight to grams conversiondwt to grams

Pennyweight Pricing Trap: Convert DWT Before You Sell

Getting quoted in pennyweight (dwt) can quietly shave money off your payout if you think in grams. This guide shows exactly how dwt compares to grams, how buyers price scrap gold, and the simple conversions that keep you from getting underpaid.

Hands weighing a cured handmade soap bar on a digital scale with curing rack and shipping supplies in the background.
handmade soap bar weighthow much does a bar of soap weigh

Handmade Soap Bar Weights: Labeling, Pricing, Shipping

Typical handmade soap bar weights in grams and ounces, how to label net weight without getting burned by water loss, and how to estimate packaged shipping weight so you do not underpay postage.

Hands photographing a sealed Pokémon booster pack beside a digital scale reading 22.6 g, with notes and a laptop listing in the background.
pokemon pack weighingpokemon booster pack weight

Can You Weigh Pokemon Packs From Photos?

Pack weighing used to be a real trick in older Pokemon sets, but modern packs add countermeasures that make it unreliable. Here is what still matters, what weight ranges people talk about, and how photo-based weight estimates can help spot suspicious listings.