Convert

Kilogram to Tonne

Exact answer: 1 kg = 0.001 t (exact – SI decimal prefix)

Kilogram and Tonne both belong to the Mass family. The difference is a decimal prefix, so the factor is a clean power of ten. Mass figures range from micrograms in analytics to tonnes in freight.

Unit console

Convert units with formula, context and precision

UnitCloud is a local measurement lab for everyday work, engineering, IT, energy, mobility and design. Every conversion shows result, formula, base unit, rounding and the common mistake.

What do you want to convert?

From100 kg

Result0.1 t

Factor1 kg = 0.001 t

Source basisBIPM SI Brochure · NIST Guide to SI Appendix B

Examples

01100 kg = 0.1 t

Example value from the reference table. Internal calculation uses stored factors; display output is rounded.

02Common mistake

Pound is not always the same local unit. UnitCloud uses international avoirdupois values.

03Base unit: g

1 kg = 1000 g. Then the value is converted through the base unit g into Tonne.

Table

Kilogram to Tonne
Kilogram	Tonne
100	0.1
500	0.5
1,000	1
2,500	2.5
5,000	5
10,000	10

Formula

1 kg = 1000 g. Then the value is converted through the base unit g into Tonne.

Sources

BIPM SI BrochureSI base units, prefixes and official SI context.NIST Guide to SI Appendix BNIST conversion-factor method and non-SI factors.

Related conversions

Pound to Kilogramlb → kgMass Kilogram to Poundkg → lbMass Gram to Kilogramg → kgMass Kilogram to Gramkg → gMass

Search and practice paths

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Factor origin

Factors come from the stored source family and are not derived from rounded display values.

Rounding rule

UnitCloud keeps calculating with stored factors and rounds only the displayed output by selected precision.

When not to use

Do not use as the sole basis for official, medical, safety-critical or contractual decisions.

Citation

Citation note: UnitCloud, conversion with formula, sources reviewed: September 2026. Mass. Source basis: BIPM SI Brochure · NIST Guide to SI Appendix B.

Common questions

What is the factor for Kilogram to Tonne?

1 kg = 0.001 t

Which formula does Kilogram to Tonne use?

1 kg = 1000 g. Then the value is converted through the base unit g into Tonne.

What is the most common mistake?

Pound is not always the same local unit. UnitCloud uses international avoirdupois values.

When should I verify the result?

Do not use as the sole basis for official, medical, safety-critical or contractual decisions.