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kg to Tonnes Converter

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Convert kilograms to metric tonnes using the SI relation 1 t = 1,000 kg, so 1 kg = 0.001 t. A 1,500 kg car comes out to 1.5 t; a 12,000 kg truck is 12 t. Useful for road-vehicle gross weights, freight container payloads, agricultural yields and any aggregation where kilogram-scale entries need to roll up into tonne-level reports. Browser-local.

Decimal places:

From (Metric, Kilogram)

Kilogram (kg)

To (Metric, Metric tonne)

Metric tonne (t)

Kilogram (kg) → Metric tonne (t)

Quick reference table

Kilogram (kg)	Metric tonne (t)
1 kg	0.001 tonne
2 kg	0.002 tonne
5 kg	0.005 tonne
10 kg	0.01 tonne
25 kg	0.025 tonne
50 kg	0.05 tonne
100 kg	0.1 tonne

Glossary

Kilogram (kg)

The kilogram is the SI base unit of mass, redefined in 2019 in terms of the Planck constant (h = 6.62607015×10⁻³⁴ J·s). One kilogram equals 1000 g, 2.20462 lb or 0.157 stone. It anchors all other metric mass units and is the standard for body weight, groceries, freight and scientific work in nearly every country.

Metric tonne (t)

A metric tonne is exactly 1,000 kg (1 t = 2,204.62 lb ≈ 1.1023 US short ton). It is the standard unit for cargo shipping, industrial bulk weights, vehicle gross weights in metric countries and CO₂ emission accounting. Do not confuse with the US short ton (907 kg) or the UK long ton (1,016 kg) — those are imperial units.

Metric system (SI)

The metric system is a decimal system of measurement built around the kilogram for mass, the meter for length and the second for time, with multiples and submultiples expressed as powers of ten (milligram, gram, tonne). Adopted in France in 1799 and codified internationally as the International System of Units (SI) in 1960, it is now the official system in nearly every country and the standard in science.

Imperial / US Customary system

The imperial system is the historical English system of weights and measures whose mass units are the ounce, pound, stone and ton (16 oz = 1 lb, 14 lb = 1 stone, 2,000 lb = 1 US short ton). Codified by the British Weights and Measures Act of 1824 and aligned with US Customary by the 1959 international yard-and-pound agreement (1 lb = 0.45359237 kg exactly), it is still used in the United States and the United Kingdom for everyday weights.

Related tools

Metric Tonnes to Kilograms

Convert metric tonnes to kilograms — 1 t = 1000 kg

Metric Tonnes to US Short Tons

Convert metric tonnes to US short tons — 1 t = 1.1023 short ton

Grams to Metric Tonnes

Convert grams to metric tonnes — 1 g = 1e-6 t

Weight & Mass Converter

Convert weight and mass — mg, g, kg, tonnes, ounces, pounds, stones, US tons