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Grams to Kg Converter

Convert grams to kilograms and back with the exact 1 kg = 1,000 g SI factor. Also shows milligrams, micrograms, metric tons, ounces (approximately 28.3495 g each), and pounds (approximately 2.20462 lb per kg).

Convert mass
g

Same mass expressed across every supported unit. The input you typed is highlighted.

Grams

500 g

Kilograms

0.5 kg

Milligrams

500,000 mg

Micrograms

500,000,000 ug

Ounces

17.637 oz

Pounds

1.1023 lb

Metric tons

0.0005 t

Quick reference

GramsKilograms
1 g0.001 kg
10 g0.01 kg
100 g0.1 kg
500 g0.5 kg
1,000 g1 kg
5,000 g5 kg

Frequently Asked Questions about the Grams to Kg Converter

How many grams are in a kilogram?
Exactly 1,000 grams. The kilogram is the SI base unit of mass and the gram is defined as one-thousandth of it (the prefix kilo- means 10^3), so 1 kg = 1000 g and 1 g = 0.001 kg. The relationship is exact by definition, not a measurement, so no rounding error is ever introduced when you convert between the two. A 500 g bag of pasta is 0.5 kg, a 250 g block of butter is 0.25 kg, and a 1500 g whole chicken is 1.5 kg. The shortcut to remember: shift the decimal three places to the left to go from grams to kilograms, three places to the right to go the other way.
How do I convert 500 g to kg?
Divide by 1000. 500 g divided by 1000 equals 0.5 kg, which is also one half-kilo. The same value works out to 17.6370 ounces (500 / 28.3495) or about 1.1023 pounds (0.5 x 2.20462), which is roughly what an American shopper would call 'a bit over a pound'. EU food labels and most international recipes already use grams below the 1 kg threshold and kilograms above it, so 500 g and 0.5 kg are the most common form you will see for items in that range (sugar packs, butter blocks, ground meat trays).
How do I convert kg to grams?
Multiply by 1000. So 2 kg equals 2,000 g, 0.75 kg equals 750 g, and 1.5 kg equals 1,500 g. The conversion direction matters in only one place: kitchen recipes. US recipes sometimes mix kilograms (large roasts, whole turkeys) with grams (spices, baking ingredients), so it helps to convert everything to a single unit before scaling a recipe up or down. Switch the converter to 'kg to g' mode and the result panel highlights the grams figure so you can copy it straight into your scale or recipe app.
Is a gram the same as a milliliter?
No. Grams measure mass and milliliters measure volume. Water near room temperature is often approximated as 1 g/mL, but even that density varies slightly with temperature. Other substances require their own density, such as about 0.91 g/mL for olive oil or 1.42 g/mL for honey.
What is 1 kg in pounds?
About 2.20462 pounds (or 2.2046226 to seven decimals, derived from the 1959 international yard-and-pound agreement that fixed 1 lb at exactly 0.45359237 kg). So 1 kg is roughly 2 lb 3.27 oz on a US butcher scale. For mental math, 'doubling and adding 10 percent' gets you within a tenth of a percent: 5 kg is about 11 lb (5 x 2 + 1), 10 kg is about 22 lb, 25 kg is about 55 lb. This converter shows the exact pound and ounce value alongside the metric units so a US import label and an EU shipping spec line up without surprises.

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