ALP Unit Converter — µkat/L to IU/L
Instantly convert Alkaline Phosphatase (ALP) enzyme levels between microkatals per litre (µkat/L) and International Units per litre (IU/L). Accurate, medical-grade conversion.
SI Units or Conventional Units?
Select your starting unit below. The converter uses the exact biochemical standard factor (1 µkat/L = 60 IU/L) for precise medical calculations.
µkat/L to IU/L Converter
Enter your Alkaline Phosphatase value in microkatals per litre
Enter the value exactly as it appears on your lab report.
Conversion Result
Equivalent value in International Units per litre
Enter your value, then click Convert to IU/L.
IU/L to µkat/L Converter
Enter your Alkaline Phosphatase value in International Units per litre
Enter the value exactly as it appears on your lab report.
Conversion Result
Equivalent value in microkatals per litre
Enter your value, then click Convert to µkat/L.
ALP Normal Ranges Quick Reference
Typical reference ranges for Alkaline Phosphatase in blood tests. Always refer to the specific reference range provided by your testing laboratory, as methods and equipment can vary.
| Demographic | Conventional (IU/L) | SI Units (µkat/L) |
|---|---|---|
| Adult Males | 40 – 120 IU/L | 0.67 – 2.0 µkat/L |
| Adult Females | 35 – 105 IU/L | 0.58 – 1.75 µkat/L |
| Children (growing) | 100 – 350 IU/L | 1.67 – 5.83 µkat/L |
| Infants | 150 – 420 IU/L | 2.50 – 7.00 µkat/L |
| Pregnancy (3rd Trimester) | Up to 250 IU/L | Up to 4.17 µkat/L |
ALP Unit Conversion FAQ
Everything you need to know about converting enzyme activity units and understanding your lab results.
To convert Alkaline Phosphatase (ALP) from microkatals per litre (µkat/L) to International Units per litre (IU/L), multiply the value by 60. For example, 1.5 µkat/L × 60 = 90 IU/L.
To convert from International Units per litre (IU/L) to microkatals per litre (µkat/L), divide the value by 60. For example, 120 IU/L ÷ 60 = 2.0 µkat/L.
For healthy adults, the normal reference range for ALP is typically 30 to 120 IU/L, which is equivalent to 0.5 to 2.0 µkat/L. Children and adolescents often have significantly higher levels due to active bone growth.
The katal (kat) is the SI unit of enzyme activity, defined as the amount of enzyme that converts 1 mole of substrate per second. The International Unit (IU) is the conventional unit, defined as the amount of enzyme that converts 1 micromole of substrate per minute. Therefore, 1 µkat equals exactly 60 IU.
The use of units depends on regional laboratory standards. Many countries in Europe and those following strict SI unit guidelines report enzyme activity in µkat/L. The UK, US, and many other regions traditionally report in IU/L. This converter helps bridge the gap when comparing international test results.