How many grams are in a kilogram?

A kilogram is exactly 1,000 g. Multiply kilograms by 1,000, or move the decimal point three places right.

How many grams is a 1.2 kg parcel?

A 1.2 kg parcel is 1,200 g. A parcel scale that reads in grams shows that figure.

How do I turn 350 g back into kilograms?

350 g is 0.35 kg. Divide grams by 1,000.

Kilograms (kg) to Grams (g) Converter

Enter a value to instantly convert between weight units.

From

Precision4 dp

1 Kilogram = 1000 Gram

Key Formulas

Kilogram → Pound

lb = kg × 2.20462

Pound → Kilogram

kg = lb × 0.453592

Gram → Ounce

oz = g × 0.035274

Ounce → Gram

g = oz × 28.3495

Formula

g = kg × (1 / 0.001)

One kilogram is 1000 grams, so multiply kilograms by 1000. The kilo prefix means a thousand under the BIPM SI prefixes, so the decimal point moves three places to the right. Cooks, shippers, and lab technicians make this move all day, and 2.5 kg of flour is 2500 g. The kilogram is the SI base unit of mass, and this conversion carries no rounding error.

Source: NIST exact and named mass definitions (definition-derived arithmetic)

Reviewed by the Convert Calc editorial team · Last reviewed: 2026-10-06 · see our methodology

Frequently Asked Questions

Real-World Examples

A 2 kg bag of flour, in grams.

2 kg = 2000 g

A 0.5 kg block of butter, in grams.

0.5 kg = 500 g

A 5 kg bag of rice, in grams.

5 kg = 5000 g

A 0.025 kg portion of spice mix, in grams.

0.025 kg = 25 g

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