Edit either value. Decimals and scientific notation supported.
1
mg
Decimal
Stone + pounds
Whole stone; pounds from 0 to less than 14. Non-negative values.
esc
Kilogramkg
Gramg
Milligrammg
Microgramµg
Poundlb
Ounceoz
Stonest
Metric tonnet
US short tonton (US)
Imperial long tonton (UK)
Imperial hundredweightcwt (UK)
US hundredweightcwt (US)
Imperial quarterqr (UK)
Avoirdupois dramdr (av)
Graingr
Pennyweightdwt
Troy ounceoz t
Metric quintalq
No units found. Try a name or symbol.
Stone + pounds
1e-9
t
Decimal
Stone + pounds
Whole stone; pounds from 0 to less than 14. Non-negative values.
esc
Kilogramkg
Gramg
Milligrammg
Microgramµg
Poundlb
Ounceoz
Stonest
Metric tonnet
US short tonton (US)
Imperial long tonton (UK)
Imperial hundredweightcwt (UK)
US hundredweightcwt (US)
Imperial quarterqr (UK)
Avoirdupois dramdr (av)
Graingr
Pennyweightdwt
Troy ounceoz t
Metric quintalq
No units found. Try a name or symbol.
Stone + pounds
CONVERSION
1 mg ≈ 1e-9 t
6 significant figures
10 significant figures
15 significant figures
Precision changes displayed rounding, not calculation accuracy.
FORMULAt = mg ÷ 1000000000
FORMULA & EXAMPLES
How to convert Milligrams to metric tonnes
t = mg ÷ 1000000000
Divide the mg reading by 1000000000.
Worked examples
1 mg ≈ 1e-9 t
1 ÷ 1000000000 ≈ 1e-9
1000 mg ≈ 0.000001 t
1000 ÷ 1000000000 ≈ 0.000001
Frequently asked questions
Which ton definition does this conversion use?
A metric tonne is 1,000 kg, a US short ton is 2,000 lb, and an Imperial long ton is 2,240 lb. Use the variant explicitly named in the converter.
Milligrams to metric tonnes table
Fixed reference · Milligram to Metric tonne
Reference values use this page’s named pair and default context. Calculator precision and font settings do not change this table.
Milligram (mg)
Metric tonne (t)
0
0
0.1
1e-10
0.5
5e-10
1
1e-9
2
2e-9
5
5e-9
10
1e-8
25
2.5e-8
50
5e-8
100
1e-7
1000
0.000001
Table results use 10 significant figures; decimal formula coefficients use up to 15. Calculations use the unit definitions before rounding. Extra digits do not improve measurement accuracy.