What is 3/64 as a decimal?

3/64 is exactly 0.046875 as a decimal.

How many millimetres is 3/64 of an inch?

3/64 of an inch is 1.190625 mm, computed with the exact definition 1 inch = 25.4 mm.

3/64

Fraction3/64

Decimal0.046875

Percent4.6875%

3 of 64 equal parts filled .

Where the decimal comes from

3/64 equals 46875/1,000,000 equals 0.046875.

Multiply the top and bottom by 15625 and the denominator becomes 1,000,000. A fraction over 1,000,000 is what a decimal is: 0.046875 means 46875 thousandths.

Every way to write it

Decimal: 0.046875
Percent: 4.6875%
Ratio: 3 : 64 (part to whole)
As inches: 3/64″ = 1.190625 mm

Equivalent fractions

Multiply the top and bottom of 3/64 by the same number and the value does not change:

3/64 = 6/128 = 9/192 = 12/256 = 15/320 = 18/384 · more, or pick a denominator

On the number line

As a measurement

Read as inches, 3/64″ is 1.190625 mm exactly. The nearest marks on the finer rules:

Rule	Nearest mark	Decimal inches	mm	Difference
16ths	1/16″	0.0625	1.5875	+0.3969 mm
32ths	1/16″	0.0625	1.5875	+0.3969 mm
64ths	3/64″	0.046875	1.1906	exact

Need a different rule or a tolerance? Nearest fraction · Within tolerance

Common questions

What is 3/64 as a decimal?: 3/64 is exactly 0.046875 as a decimal.
What is 3/64 as a percentage?: 3/64 is exactly 4.6875%.
How many millimetres is 3/64 of an inch?: 3/64 of an inch is 1.190625 mm, computed with the exact definition 1 inch = 25.4 mm.

Fraction–decimal chartThe everyday set, printable.Rule charts16ths, 32nds, 64ths, 128ths.The rulerSee 3/64 in its place.

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.