Convert 40 mg to t

How to convert milligrams to metric tons

1. Formula: metric tons = milligrams × 1e-9
2. Put in the value: 40 milligrams.
3. Result: 4e-8 metric tons.

Milligrams to metric tons table

Converting the other way: metric tons to milligrams

milligrams = metric tons × 1,000,000,000. So 4e-8 metric tons is back to 40 milligrams; one metric ton is 1,000,000,000 milligrams. See the metric tons to milligrams table.

Quick estimate in your head

For a rough answer, multiply by about 1e-9: 40 × 1e-9 ≈ 4e-8 t, against the exact 4e-8 t (0.0% out). Good enough to check that a calculated result is sensible.

Common mistakes

The usual slip is using the factor the wrong way round. A milligram is smaller than a metric ton, so the number of metric tons must come out smaller than the number of milligrams. If your answer goes the other way, divide instead of multiplying.

About the units

Milligram (mg) and metric ton (t) are both units of mass. One milligram equals 1e-9 metric tons, and one metric ton equals 1,000,000,000 milligrams. Results on this page are rounded for display; the conversion itself uses the exact definitions.

Mass conversions come up in cooking and baking, shipping and luggage limits, body weight, medicine doses and buying food by weight.

40 milligrams in other units

The most readable unit for this amount is milligrams (40).

• 0.04 g
• 0.00004 kg
• 4e-8 t
• 0.00141096 oz
• 0.00008818 lb
• 0.0000063 st
• 4.409245e-8 ton
• 0.2 ct

How this answer was calculated

The result is worked out from the numbers in this page's address when the page is opened, using exact arithmetic wherever possible and rounding only for display. Nothing is copied from a printed table. If you think an answer is wrong, please tell us through the contact page and we will check it.

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