What is 0.02 as a fraction?

0.02 as a fraction is 1/50. Write the digits over 100 to get 2/100, then divide top and bottom by 2.

What is 0.02 as a percentage?

0.02 is 2%. Multiplying a decimal by 100 moves the point two places to the right.

How many millimetres is 0.02 of an inch?

0.02 inches is 0.508 mm, using the exact definition 1 inch = 25.4 mm.

0.02 as a fraction

Fraction1/50lowest terms

Decimal0.02

Percent2%

How to get there

0.02 has 2 digits after the point, so it is that many hundredths: write the digits over 100 — 2/100.
2 and 100 share a greatest common divisor of 2. Divide both by it: 1/50.

2 of 100 squares — 0.02 of the whole, which is also 2%.

As a measurement

Read as inches, 0.02″ is 0.508 mm exactly. The nearest marks on a rule:

Rule	Nearest mark	Inches	mm	Difference
16ths	0″	0	0	−0.508 mm
32ths	1/32″	0.03125	0.7938	+0.2858 mm
64ths	1/64″	0.015625	0.3969	−0.1111 mm

Common questions

What is 0.02 as a fraction?: 0.02 as a fraction is 1/50. Write the digits over 100 to get 2/100, then divide top and bottom by 2.
What is 0.02 as a percentage?: 0.02 is 2%. Multiplying a decimal by 100 moves the point two places to the right.
How many millimetres is 0.02 of an inch?: 0.02 inches is 0.508 mm, using the exact definition 1 inch = 25.4 mm.

The same number, other ways

1/50Everything about the fraction: equivalents, the bar model, the number line.2%The same value as a percentage, with its own derivation.Decimal → fraction chartThe whole lookup table, printable.Nearest fractionMatch 0.02″ against any rule, with the exact error.

Where this comes from. Exact rational arithmetic on the values shown — fractions are pairs of integers until display, and inch–metric conversion uses 25.4 mm to the inch, exact by definition since 1959. See the full methodology.