WEIGHT & MASS CONVERSION

Milligram to Microgram.

Convert milligram (mg) to microgram (μg), with the math explained.

Weight & mass converter
mg
1,000μg
THE RESULT

1 mg = 1,000 μg

Calculated in your browserFormula & conversion table

THE MATH, MADE SIMPLE

How to convert milligram to microgram

Multiply your milligram value by 1,000 to get the equivalent in microgram. Both units are normalized through the kilogram.

CONVERSION FORMULAμg = mg × 1,000
WORKED EXAMPLE

10 mg = 10,000 μg

Result rounded to 12 significant digits. Change the precision in the calculator to suit your task.

QUICK REFERENCE

mg to μg conversion table

Reverse
Milligram (mg)Microgram (μg)
1 mg1,000 μg
2 mg2,000 μg
5 mg5,000 μg
10 mg10,000 μg
20 mg20,000 μg
50 mg50,000 μg
100 mg100,000 μg
500 mg500,000 μg
1,000 mg1,000,000 μg
mg

About the milligram

The milligram (mg) is a unit of weight & mass. One milligram equals 0.000001 kilogram (base unit) in this calculator.

All milligram conversions
μg

About the microgram

The microgram (μg) is a unit of weight & mass. One microgram equals 1e-9 kilogram (base unit) in this calculator.

All microgram conversions

Common questions

What is 1 mg in μg?

One milligram equals 1,000 μg. Use the formula above for other values.

Why might another calculator show a different last digit?

Calculators may round at different stages or use different unit conventions. We keep full JavaScript numeric precision during calculation and round only for display. Choose up to 15 significant digits. Check US versus UK units and the notes for this category.

BROWSE BY UNIT

Convert milligram to…