Kilograms to Grams Converter

Converting kilograms to grams is a multiplication by a fixed factor: 1 kg = 1000 g. The table below covers the values people look up most often, and the formula section shows exactly where that factor comes from.

Because one kilogram works out to 1000 g, the gram is the much larger unit of the two: a figure given in gram always carries a larger number than the same measurement in kilogram. A chart drawn in kg can hide that, so check which label the axis uses before you compare two readings.

Cooking and shipping are the two places this pair appears most: a kitchen scale reads in kilograms while a recipe or label is written in grams, and a courier tariff built on grams still has to be checked against a scale showing kilograms.

The conversion factor used here is 1000 g per kilogram (0 significant digits as shown). Kept to seven figures it covers professional measurement; if you round it to two or three decimals for a spreadsheet, the error scales with the input — at a value of 1,000 kg a factor rounded to three decimals can be off by a measurable amount. The reverse direction uses 0.001 kg per g, the exact reciprocal, so a round trip through both pages returns your original number.

Kilograms to Grams formula

Use this formula to convert any kilogram value to grams:

g = kg × 1000

Worked example: 100 kg × 1000 = 100000 g.

Kilograms to Grams conversion table

Kilograms (kg)Grams (g)
0.5 kg500 g
1 kg1000 g
2 kg2000 g
5 kg5000 g
10 kg10000 g
20 kg20000 g
50 kg50000 g
100 kg100000 g
500 kg500000 g
1000 kg1000000 g

How to convert kilograms to grams

Multiply the kilogram value by 1000 to get the equivalent in grams. This single factor works for every value in the table above and for anything else you need — there is no per-value adjustment, which is why a conversion table and a calculator always agree.

If you need the opposite direction, use the Grams to Kilograms converter instead of dividing by hand; both pages use the same source factors. For every other kg conversion in one place, see the kg conversion hub.

Frequently asked questions

How many grams are in 1 kilogram?
1 kilogram = 1000 g.

What is 100 kilograms in grams?
100 kg = 100000 g.

Is converting kilograms to grams the same as grams to kilograms?
No — the direction changes the multiplier. The reverse conversion (1 g = 0.001 kg) is on the Grams to Kilograms page.

Related conversions

Try the ConvBolt Unit Converter for any other weight unit, browse the Weight conversions, or read our conversion guides.