µg to mg
1 µg (µg) equals 0.001 mg (mg). Type a value into either box below for an instant two-way conversion. For other units, use the full unit converter.
Chinese version: 微克转毫克
Conversion factor
1 µg = 0.001 mg
Reverse: 1 mg = 1,000 µg
µg to mg converter
µg（µg）
mg（mg）
µg to mg conversion table
| µg | mg | Detail |
|---|---|---|
| 1 | 0.001 | 1 µg to mg |
| 5 | 0.005 | 5 µg to mg |
| 10 | 0.01 | 10 µg to mg |
| 25 | 0.025 | 25 µg to mg |
| 50 | 0.05 | 50 µg to mg |
| 100 | 0.1 | 100 µg to mg |
| 200 | 0.2 | 200 µg to mg |
| 250 | 0.25 | 250 µg to mg |
| 400 | 0.4 | 400 µg to mg |
| 500 | 0.5 | 500 µg to mg |
| 1,000 | 1 | 1,000 µg to mg |
| 2,000 | 2 | 2,000 µg to mg |
How to convert
To convert µg to mg, multiply: mg = µg × 0.001
To convert mg to µg, divide: µg = mg ÷ 0.001 (equivalently × 1,000).
Example: 1,000 µg × 0.001 = 1 mg. The factor is derived from the international definition of each unit; results are shown to 4 significant figures.
Frequently asked questions
1,000 µg = 1 mg. The formula is: value in µg × 0.001 = value in mg. Use the converter above to convert any value instantly.
1 mg = 1,000 µg. To convert back, divide the mg value by 0.001 (or multiply by 1,000).
mg = µg × 0.001; conversely µg = mg ÷ 0.001. For example, 1,000 µg × 0.001 = 1 mg. The factor comes from the international definition of the units.
More conversions
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Disclaimer: conversion factors are derived from international unit definitions and results are for reference only. For trade settlement, engineering or legal documents, follow the contract or official metrology standards.