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Convert Tonnes to Milligrams

1 tonne is 1,000,000,000 mg. One tonne is exactly 1000000000 milligrams.

One tonne is 1000000000 milligrams. To convert tonnes to milligrams, multiply by 1000000000; to go the other way, divide by 1000000000 or multiply by 1.0000 × 10^-9. The factor is exact rather than rounded: it follows from NIST Handbook 44. One thousand kilograms, also called the metric ton — 2,204.6 pounds.

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Milligrams
1,000,000,000 mg
Tonnes × 1000000000
value * 10000000001,000,000,000 mg

1 tonne in every weight unit

UnitValueExact factor
ounces35,273.96195 oz× 35,273.9619496
pounds2,204.622622 lb× 2,204.62262185
stone157.4730444 st× 157.473044418
US tons1.102311311 ton× 1.10231131092
micrograms1,000,000,000,000 mcg× 1,000,000,000,000
milligrams1,000,000,000 mg× 1,000,000,000
grams1,000,000 g× 1,000,000
kilograms1,000 kg× 1,000
tonnes (as entered)1 t

Factors are entered by hand from NIST Handbook 44 rather than derived from a units library, so the ones that terminate are exact rather than rounded.

How do you convert tonnes to milligrams?

  1. 1.Take the measurement in tonnes.
  2. 2.Multiply by 1000000000 — that is how many milligrams fit in one tonne.
  3. 3.To go back the other way, divide by 1000000000, or multiply by 1.0000 × 10^-9.

Tonnes to milligrams conversion table

TonnesMilligrams
1 t1,000,000,000 mg
2 t2,000,000,000 mg
3 t3,000,000,000 mg
4 t4,000,000,000 mg
5 t5,000,000,000 mg
6 t6,000,000,000 mg
7 t7,000,000,000 mg
8 t8,000,000,000 mg
9 t9,000,000,000 mg
10 t10,000,000,000 mg
12 t12,000,000,000 mg
15 t15,000,000,000 mg
20 t20,000,000,000 mg
25 t25,000,000,000 mg
50 t50,000,000,000 mg
100 t100,000,000,000 mg

What are tonnes and milligrams?

Tonne (t)
One thousand kilograms, also called the metric ton — 2,204.6 pounds.
Milligram (mg)
One thousandth of a gram, and exactly 1,000 micrograms. The unit almost every medicine is dosed in.

Source: NIST Handbook 44 — mass and weight

Questions people actually ask

How many milligrams are in a tonne?
1000000000. One thousandth of a gram, and exactly 1,000 micrograms. The unit almost every medicine is dosed in.
How do I convert milligrams back to tonnes?
Divide by 1000000000, or multiply by 1.0000 × 10^-9 — they are the same operation.

Other weight conversions

Milligrams to tonnes — the same conversion the other way.

Calculators that work in weight