Convert kg to tonnes
1 kg = 0.001 t · 1 t = 1000 kg · Exact by definition
1 kg = 0.001 t
The same value in other units
- milligram
- 1000000 mg
- gram
- 1000 g
- ounce
- 35.274 oz
- pound
- 2.20462 lb
Settings
Digits kept in the answer. Automatic keeps six, which hides floating-point noise without losing anything real.
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Paste one conversion per line, written the way you would say it: "5 km to mi". Handy for a column copied out of a spreadsheet.
Mass
kg to tonnes: conversion table
| kilogram | tonne |
|---|---|
| 1 kg | 0.001 t |
| 2 kg | 0.002 t |
| 3 kg | 0.003 t |
| 5 kg | 0.005 t |
| 10 kg | 0.01 t |
| 20 kg | 0.02 t |
| 25 kg | 0.025 t |
| 50 kg | 0.05 t |
| 100 kg | 0.1 t |
| 250 kg | 0.25 t |
| 500 kg | 0.5 t |
| 1000 kg | 1 t |
| tonne | kilogram |
|---|---|
| 1 t | 1000 kg |
| 2 t | 2000 kg |
| 3 t | 3000 kg |
| 5 t | 5000 kg |
| 10 t | 10000 kg |
| 20 t | 20000 kg |
| 25 t | 25000 kg |
| 50 t | 50000 kg |
| 100 t | 100000 kg |
| 250 t | 250000 kg |
| 500 t | 500000 kg |
| 1000 t | 1000000 kg |
How the conversion works
t = kg × 0.001
Both units are defined exactly, so the precision of the kg to tonnes result depends only on the number of decimal places you choose.
METHOD AND SOURCES
Where the conversion factors come from
Results are calculated from the unit definitions stored in the converter, not copied from a lookup table. For exact units, every value in the table follows from the same factor shown in the formula above.
- BIPM — SI Brochure
The official definitions of the International System of Units (SI).
- NIST SP 811 — Conversion factors
Conversion-factor tables for SI and non-SI units.
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