How to Convert Micrograms to Carats (µg to ct)
Weight units matter at the wet market, where older stalls and Chinese medical halls still quote prices per kati or tael, and when following American recipes in ounces and pounds. This guide shows how to convert micrograms into carats by hand, with examples and a quick-reference table.
The conversion
To convert micrograms to carats, multiply the value by 5.000000e-06. To go the other way, divide by the same number (or multiply by 200,000). Because the factor is tiny, scientific notation keeps the numbers manageable.
Carats = micrograms × 5.000000e-06
Worked examples
- 3 µg = 1.500000e-5 ct
- 12.5 µg = 6.250000e-5 ct
- 75 µg = 0.000375 ct
Micrograms to Carats table
| Micrograms | Carats |
|---|---|
| 1 µg | 5.000000e-6 ct |
| 2 µg | 1.000000e-5 ct |
| 5 µg | 2.500000e-5 ct |
| 10 µg | 5.000000e-5 ct |
| 20 µg | 0.0001 ct |
| 25 µg | 0.000125 ct |
| 50 µg | 0.00025 ct |
| 100 µg | 0.0005 ct |
| 250 µg | 0.00125 ct |
| 500 µg | 0.0025 ct |
| 1,000 µg | 0.005 ct |
Common questions
Is µg to ct exact?
The factors used here are the internationally defined values where they exist; results are rounded for display only.
How do I convert back?
Use the Carats to Micrograms converter.
Mistakes to avoid
Multiplying when you should divide
Converting to a smaller unit gives a bigger number, and converting to a larger unit gives a smaller one. If your answer moves the wrong way, you have inverted the factor.
Mixing similar-sounding units
US and imperial gallons, pints and tons are different sizes, and decimal kilobytes differ from binary kibibytes.
Forgetting squared and cubed units
Area and volume factors are the length factor squared or cubed, so 1 m² is about 10.76 sq ft, not 3.28.
Background
Writing the units next to every number while you work is the simplest way to avoid mistakes. If the units do not cancel to leave the one you want, the calculation is set up wrongly.
Singapore adopted the metric system in the 1970s, replacing imperial units and traditional Chinese measures in most official uses. Metric units are now standard in schools, trade and government, but older units survive in property, markets and imported goods.
A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.
For any value, use the Micrograms to Carats Converter or browse all weight converters.
Run your own numbers: Micrograms to Carats Converter