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Catalytic Activity converter

hectokatal to attokatal

Convert hectokatal (hkat) to attokatal (akat). Use an editable catalytic activity converter, conversion formula, and reference table.

1e+20

1 hkat = 1e+20 akat

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Conversion formula

akat = hkat × 1e+20

One hectokatal equals 1e+20 attokatal. Multiply your value in hectokatal by this factor to get attokatal. For the reverse conversion, divide by the same factor.

Worked example

To convert 5 hectokatal:
5 × 1e+20 = 5e+20 akat

Conversion table

hectokatal (hkat)attokatal (akat)
0.011e+18
0.11e+19
11e+20
22e+20
55e+20
101e+21
252.5e+21
505e+21
1001e+22
10001e+23

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 hectokatal is 100 base units; one attokatal is 1e-18 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 hkat to akat?

Multiply the quantity in hkat by 1e+20. You can also type the value into the converter above.

Can I reverse the conversion?

Yes. Use the swap button or open the attokatal to hectokatal 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.

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