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Tonne to Kilogram

Exact answer: 1 t = 1000 kg (exact – SI decimal prefix)

Tonne and Kilogram 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.

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From0.5 t
Result500 kg
Factor1 t = 1000 kg
Source basisBIPM SI Brochure · NIST Guide to SI Appendix B

Examples

010.5 t = 500 kg

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 t = 1000000 g. Then the value is converted through the base unit g into Kilogram.

Table

Tonne to Kilogram
TonneKilogram
0.5500
11,000
22,000
55,000
1010,000
2525,000

Formula

1 t = 1000000 g. Then the value is converted through the base unit g into Kilogram.

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 → kgMassKilogram to Poundkg → lbMassGram to Kilogramg → kgMassKilogram to Gramkg → gMass

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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 Tonne to Kilogram?

1 t = 1000 kg

Which formula does Tonne to Kilogram use?

1 t = 1000000 g. Then the value is converted through the base unit g into Kilogram.

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.