Enzyme Unit (U) to Katal Converter

Catalytic Activity Converter

7 units available

Decimals:

From

To

1.666667e-8

1 U = 1.666667e-8 kat

Formula:

kat = U × 1.666667e-8

With your value: 1 U = 1.666667e-8 kat

Other Enzyme Unit (U) to Katal conversions

2 U to kat 3 U to kat 4 U to kat 5 U to kat 6 U to kat 7 U to kat 8 U to kat

Enzyme Unit (U) to Katal Conversion Table

Enzyme Unit (U) (U)	Katal (kat)
0.5	8.333333e-9
1	1.666667e-8
2	3.333333e-8
5	8.333333e-8
10	1.666667e-7
15	2.500000e-7
20	3.333333e-7
25	4.166667e-7
50	8.333333e-7
100	1.666667e-6
250	4.166667e-6
500	8.333333e-6
1000	1.666667e-5

Katal to Enzyme Unit (U) Conversion Table

Katal (kat)	Enzyme Unit (U) (U)
0.5	30,000,000
1	60,000,000
2	120,000,000
5	300,000,000
10	600,000,000
15	900,000,000
20	1,200,000,000
25	1,500,000,000
50	3,000,000,000
100	6,000,000,000
250	15,000,000,000
500	30,000,000,000
1000	60,000,000,000

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Enzyme Unit (U) (U)

Catalytic Activity

Exact conversion

Derived SI unit katal (kat = mol/s). The enzyme unit (U) is exactly 1 µmol/min = 1/60 µkat.

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

Katal (kat)

Catalytic Activity

Exact conversion

Derived SI unit katal (kat = mol/s). The enzyme unit (U) is exactly 1 µmol/min = 1/60 µkat.

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

How to Convert Enzyme Unit (U) to Katal

To convert from Enzyme Unit (U) (U) to Katal (kat), multiply the value by 1.666667e-8.

Formula: kat = U × 1.666667e-8

Reverse: U = kat × 60,000,000

Step-by-Step Example

Start with your value in Enzyme Unit (U). For example: 5 U
Multiply by the conversion factor: 5 x 1.666667e-8
The result is: 8.333333e-8 kat

About Enzyme Unit (U)

The enzyme unit (u) (U) is a unit of catalytic activity. One enzyme unit (u) equals 1.666667 × 10^-8 base units. UnitConvertLab converts it against every other catalytic activity unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: catalytic activity calculations, engineering and science, education.

About Katal

The katal (kat) is a unit of catalytic activity. One katal equals 1 base unit. UnitConvertLab converts it against every other catalytic activity unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: catalytic activity calculations, engineering and science, education.

Frequently Asked Questions

How many Katal are in 1 Enzyme Unit (U)?

There are exactly 1.666667e-8 Katal in 1 Enzyme Unit (U). This means the conversion factor from Enzyme Unit (U) to Katal is 1.666667e-8.

What is the formula to convert Enzyme Unit (U) to Katal?

The formula to convert Enzyme Unit (U) to Katal is: kat = U × 1.666667e-8. For example, to convert 10 Enzyme Unit (U) to Katal, you would multiply 10 by 1.666667e-8.

What is a Enzyme Unit (U)?