microkatal to petakatal
Convert microkatal (μkat) to petakatal (Pkat). Use an editable catalytic activity converter, conversion formula, and reference table.
1 μkat = 1e-21 Pkat
Conversion formula
One microkatal equals 1e-21 petakatal. Multiply your value in microkatal by this factor to get petakatal. For the reverse conversion, divide by the same factor.
Worked example
To convert 5 microkatal:5 × 1e-21 = 5e-21 Pkat
Conversion table
| microkatal (μkat) | petakatal (Pkat) |
|---|---|
| 0.01 | 1e-23 |
| 0.1 | 1e-22 |
| 1 | 1e-21 |
| 2 | 2e-21 |
| 5 | 5e-21 |
| 10 | 1e-20 |
| 25 | 2.5e-20 |
| 50 | 5e-20 |
| 100 | 1e-19 |
| 1000 | 1e-18 |
About these measurements
Catalytic activity expresses the rate of a catalyzed reaction in moles per second.
The base reference used here is the katal. One microkatal is 0.000001 base units; one petakatal is 1e+15 base units.
Important distinctions
Assay conditions must match before comparing enzyme measurements.
Precision
The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.
Common questions
How do I convert μkat to Pkat?
Multiply the quantity in μkat by 1e-21. You can also type the value into the converter above.
Can I reverse the conversion?
Yes. Use the swap button or open the petakatal to microkatal converter.
Reference
NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.
