Grams to Kilograms Converter
g → kg · ⚖️ Weight & Mass
1 Grams = 0.001 Kilograms
How to convert Grams to Kilograms
To convert Grams to Kilograms, multiply the value in Grams by 0.001. For example, 5 g = 0.005 kg.
The Grams-to-Kilograms conversion comes up often in everyday and professional contexts alike. With 1 g equal to 0.001 kg, you can use the tool above for any value, or scan the table below for the most common Grams amounts and their Kilograms equivalents.
Weight and mass conversions matter for cooking, shipping, fitness, science, and international trade. Although 'weight' and 'mass' are technically different concepts in physics, in everyday use the terms are interchangeable and the conversions are identical.
Understanding Grams and Kilograms
The kilogram is the SI base unit of mass and the reference point for the entire metric system. Pounds and ounces dominate in the United States, while stones remain common for body weight in the UK and Ireland. Metric tons (1,000 kg) and US tons (2,000 lb) appear in freight, agriculture, and industry — and because they differ by about 10%, confusing them is a frequent and costly mistake.
How accurate is this conversion?
The pound is defined as exactly 0.45359237 kilograms, a definition adopted internationally in 1959. This means kilogram-to-pound conversions are exact, not approximate, so you can rely on the figures in the table below for any purpose, from postage to laboratory work.
All conversion factors on ClearUnits are based on internationally recognised standards (the International System of Units, SI, and official definitions). Factors are reviewed for accuracy and the calculator uses full-precision values, rounding only the displayed result.
Quick reference: common Grams to Kilograms values
The most frequently searched conversions are 1 Grams = 0.001 Kilograms, 5 Grams = 0.005 Kilograms, 10 Grams = 0.01 Kilograms, and 100 Grams = 0.1 Kilograms. The full table further down covers every common value, and the calculator handles any number you need in between.
Pro tip: For shipping and postage, always check whether a quoted weight is in metric or US tons — the difference of roughly 93 kilograms per ton can change shipping classes and costs significantly.
Grams to Kilograms — Conversion Table
| Grams (g) | Kilograms (kg) |
|---|---|
| 0.1 g | 0.0001 kg |
| 0.25 g | 0.00025 kg |
| 0.5 g | 0.0005 kg |
| 1 g | 0.001 kg |
| 2 g | 0.002 kg |
| 5 g | 0.005 kg |
| 10 g | 0.01 kg |
| 25 g | 0.025 kg |
| 50 g | 0.05 kg |
| 100 g | 0.1 kg |
| 250 g | 0.25 kg |
| 500 g | 0.5 kg |
| 1000 g | 1 kg |