What is 0.67 as a fraction?

0.67 as a fraction is 67/100. The digits go over 100, and 67 and 100 share no common factor, so it is already in lowest terms.

What is 0.67 as a percentage?

0.67 is 67%. Multiplying a decimal by 100 moves the point two places to the right.

How many millimetres is 0.67 of an inch?

0.67 inches is 17.018 mm, using the exact definition 1 inch = 25.4 mm.

0.67 as a fraction

Fraction67/100lowest terms

Decimal0.67

Percent67%

How to get there

0.67 has 2 digits after the point, so it is that many hundredths: write the digits over 100 — 67/100.
67 and 100 share no factor but 1, so 67/100 is already in lowest terms.

67 of 100 squares — 0.67 of the whole, which is also 67%.

As a measurement

Read as inches, 0.67″ is 17.018 mm exactly. The nearest marks on a rule:

Rule	Nearest mark	Inches	mm	Difference
16ths	11/16″	0.6875	17.4625	+0.4445 mm
32ths	21/32″	0.65625	16.6688	−0.3493 mm
64ths	43/64″	0.671875	17.0656	+0.0476 mm

Common questions

What is 0.67 as a fraction?: 0.67 as a fraction is 67/100. The digits go over 100, and 67 and 100 share no common factor, so it is already in lowest terms.
What is 0.67 as a percentage?: 0.67 is 67%. Multiplying a decimal by 100 moves the point two places to the right.
How many millimetres is 0.67 of an inch?: 0.67 inches is 17.018 mm, using the exact definition 1 inch = 25.4 mm.

The same number, other ways

67/100Everything about the fraction: equivalents, the bar model, the number line.67%The same value as a percentage, with its own derivation.Decimal → fraction chartThe whole lookup table, printable.Nearest fractionMatch 0.67″ 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.