convertimate Enzyme activity

Katals to international units

Type a value in kat to get it in U instantly.

60,000,000U

That's about the same as an industrial batch. That converts about 6.022×10²³ molecules every second.

What it means

How fast does it work?

Activity depends on temperature, pH and substrate concentration, so figures are only comparable under the same assay conditions.

The math

How to convert kat to U

To convert katals to international units, multiply by 60,000,000.

Example: 1 kat × 60,000,000 = 60,000,000 U.

In the other direction, 1 U = 1.667×10⁻⁸ kat.

Every unit

Your activity in every unit

Tables

kat to U conversion table

kat to U conversion table
katU
0.1 kat6,000,000 U
0.5 kat30,000,000 U
1 kat60,000,000 U
5 kat300,000,000 U
10 kat600,000,000 U
25 kat1.5×10⁹ U
50 kat3×10⁹ U
100 kat6×10⁹ U
250 kat1.5×10¹⁰ U
500 kat3×10¹⁰ U
1,000 kat6×10¹⁰ U
U to kat conversion table
U to kat conversion table
Ukat
0.1 U1.667×10⁻⁹ kat
0.5 U8.333×10⁻⁹ kat
1 U1.667×10⁻⁸ kat
5 U8.333×10⁻⁸ kat
10 U1.667×10⁻⁷ kat
25 U4.167×10⁻⁷ kat
50 U8.333×10⁻⁷ kat
100 U1.667×10⁻⁶ kat
250 U4.167×10⁻⁶ kat
500 U8.333×10⁻⁶ kat
1,000 U1.667×10⁻⁵ kat

Quick answers

Quick answers

How many U is 1 kat?
1 kat is 60,000,000 U.
How many U is 10 kat?
10 kat is 600,000,000 U.

The units

About these units

Katals (kat)

The SI unit: one mole of substrate converted per second. Enormous in practice.

International units (U)

One micromole of substrate per minute, the unit clinical laboratories use.

Learn more about activity units

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