Grams to Tonnes Converter

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Convert grams to metric tonnes via the SI chain 1 t = 1,000 kg = 1,000,000 g, so 1 g = 1 × 10⁻⁶ t. Practical when summarising thousands of small-item gram weights — for instance per-item plastic packaging mass — into a single metric-tonne figure for sustainability reports or freight invoices. Browser-local.

Gram (g)
Metric tonne (t)

Gram (g) → Metric tonne (t)

Quick reference table

Gram (g)Metric tonne (t)
1 g0 tonne
2 g0 tonne
5 g0 tonne
10 g0 tonne
25 g0 tonne
50 g0.0001 tonne
100 g0.0001 tonne

Glossary

Gram (g)

A gram is one thousandth of a kilogram (1 g = 1000 mg = 0.001 kg). It is the everyday metric unit for cooking ingredients, postal weights, jewellery and small-package retail. One US nickel weighs 5 g; a standard letter envelope tops out at about 30 g for the lowest postage tier.

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 Grams
Convert metric tonnes to grams — 1 t = 1,000,000 g
Kilograms to Metric Tonnes
Convert kilograms to metric tonnes — 1 kg = 0.001 t
Grams to Kilograms
Convert grams to kilograms — 1 g = 0.001 kg (1000 g = 1 kg)
Weight & Mass Converter
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