What is 0.88 as a fraction?

0.88 as a fraction is 22/25. Write the digits over 100 to get 88/100, then divide top and bottom by 4.

What is 0.88 as a percentage?

0.88 is 88%. Multiplying a decimal by 100 moves the point two places to the right.

How many millimetres is 0.88 of an inch?

0.88 inches is 22.352 mm, using the exact definition 1 inch = 25.4 mm.

0.88 as a fraction

Fraction22/25lowest terms

Decimal0.88

Percent88%

How to get there

0.88 has 2 digits after the point, so it is that many hundredths: write the digits over 100 — 88/100.
88 and 100 share a greatest common divisor of 4. Divide both by it: 22/25.

88 of 100 squares — 0.88 of the whole, which is also 88%.

As a measurement

Read as inches, 0.88″ is 22.352 mm exactly. The nearest marks on a rule:

Rule	Nearest mark	Inches	mm	Difference
16ths	7/8″	0.875	22.225	−0.127 mm
32ths	7/8″	0.875	22.225	−0.127 mm
64ths	7/8″	0.875	22.225	−0.127 mm

Common questions

What is 0.88 as a fraction?: 0.88 as a fraction is 22/25. Write the digits over 100 to get 88/100, then divide top and bottom by 4.
What is 0.88 as a percentage?: 0.88 is 88%. Multiplying a decimal by 100 moves the point two places to the right.
How many millimetres is 0.88 of an inch?: 0.88 inches is 22.352 mm, using the exact definition 1 inch = 25.4 mm.

The same number, other ways

22/25Everything about the fraction: equivalents, the bar model, the number line.88%The same value as a percentage, with its own derivation.Decimal → fraction chartThe whole lookup table, printable.Nearest fractionMatch 0.88″ 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.