Free tools

Free Unit Converters & Calculators

Instant, exact conversions for weight and size, plus calorie and coin-weight tools — with the formula, a conversion table and everyday examples on every page.

Weight & mass

goz

Grams to Ounces

1 gram (g) is equal to 0.

ozg

Ounces to Grams

1 ounce (oz) is equal to 28.

glb

Grams to Pounds

1 gram (g) is equal to 0.

lbg

Pounds to Grams

1 pound (lb) is equal to 453.

gkg

Grams to Kilograms

1 gram (g) is equal to 0.

kgg

Kilograms to Grams

1 kilogram (kg) is equal to 1000 grams (g).

kglb

Kilograms to Pounds

1 kilogram (kg) is equal to 2.

lbkg

Pounds to Kilograms

1 pound (lb) is equal to 0.

ozlb

Ounces to Pounds

1 ounce (oz) is equal to 0.

lboz

Pounds to Ounces

1 pound (lb) is equal to 16 ounces (oz).

gmg

Grams to Milligrams

1 gram (g) is equal to 1000 milligrams (mg).

mgg

Milligrams to Grams

1 milligram (mg) is equal to 0.

Size & length

cmin

Centimeters to Inches

1 centimeter (cm) is equal to 0.

incm

Inches to Centimeters

1 inch (in) is equal to 2.

mft

Meters to Feet

1 meter (m) is equal to 3.

ftm

Feet to Meters

1 foot (ft) is equal to 0.

mmin

Millimeters to Inches

1 millimeter (mm) is equal to 0.

inmm

Inches to Millimeters

1 inch (in) is equal to 25.

Calculators & references

BMR · TDEE

Daily Calorie Calculator

Mifflin-St Jeor BMR & TDEE with weight-loss and lean-gain targets.

Reference

US Coin Weight Chart

Penny 2.5 g · nickel 5 g · quarter 5.67 g — plus scale-calibration combos.

Don't know the weight yet?

Scale for Grams estimates any object's weight from a single photo — then converts it to grams, kilograms, pounds and ounces automatically.

Weigh with a photo