What is 0.17 as a fraction?

0.17 as a fraction is 17/100. The digits go over 100, and 17 and 100 share no common factor, so it is already in lowest terms.

What is 0.17 as a percentage?

0.17 is 17%. Multiplying a decimal by 100 moves the point two places to the right.

How many millimetres is 0.17 of an inch?

0.17 inches is 4.318 mm, using the exact definition 1 inch = 25.4 mm.

0.17 as a fraction

Fraction17/100lowest terms

Decimal0.17

Percent17%

How to get there

0.17 has 2 digits after the point, so it is that many hundredths: write the digits over 100 — 17/100.
17 and 100 share no factor but 1, so 17/100 is already in lowest terms.

17 of 100 squares — 0.17 of the whole, which is also 17%.

As a measurement

Read as inches, 0.17″ is 4.318 mm exactly. The nearest marks on a rule:

Rule	Nearest mark	Inches	mm	Difference
16ths	3/16″	0.1875	4.7625	+0.4445 mm
32ths	5/32″	0.15625	3.9688	−0.3493 mm
64ths	11/64″	0.171875	4.3656	+0.0476 mm

Common questions

What is 0.17 as a fraction?: 0.17 as a fraction is 17/100. The digits go over 100, and 17 and 100 share no common factor, so it is already in lowest terms.
What is 0.17 as a percentage?: 0.17 is 17%. Multiplying a decimal by 100 moves the point two places to the right.
How many millimetres is 0.17 of an inch?: 0.17 inches is 4.318 mm, using the exact definition 1 inch = 25.4 mm.

The same number, other ways

17/100Everything about the fraction: equivalents, the bar model, the number line.17%The same value as a percentage, with its own derivation.Decimal → fraction chartThe whole lookup table, printable.Nearest fractionMatch 0.17″ 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.