What is 83/100 as a decimal?

83/100 is exactly 0.83 as a decimal.

How many millimetres is 83/100 of an inch?

83/100 of an inch is 21.082 mm, computed with the exact definition 1 inch = 25.4 mm.

83/100

Fraction83/100

Decimal0.83

Percent83%

Where the decimal comes from

83/100 equals 0.83.

The denominator is already a power of ten, and that is what a decimal is: 0.83 means 83 hundredths.

83 of 100 squares — 0.83 of the whole. The same squares read as a percentage: 83%, because percent means per hundred.

Every way to write it

Decimal: 0.83
Percent: 83%
Ratio: 83 : 100 (part to whole)
As inches: 83/100″ = 21.082 mm

Equivalent fractions

Multiply the top and bottom of 83/100 by the same number and the value does not change:

83/100 = 166/200 = 249/300 = 332/400 = 415/500 = 498/600 · more, or pick a denominator

On the number line

As a measurement

Read as inches, 83/100″ is 21.082 mm exactly. The nearest marks on the finer rules:

Rule	Nearest mark	Decimal inches	mm	Difference
16ths	13/16″	0.8125	20.6375	−0.4445 mm
32ths	27/32″	0.84375	21.4313	+0.3493 mm
64ths	53/64″	0.828125	21.0344	−0.0476 mm

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

Common questions

What is 83/100 as a decimal?: 83/100 is exactly 0.83 as a decimal.
What is 83/100 as a percentage?: 83/100 is exactly 83%.
How many millimetres is 83/100 of an inch?: 83/100 of an inch is 21.082 mm, computed with the exact definition 1 inch = 25.4 mm.

0.83 as a fractionThe same number from the decimal's side, with the reduction shown.83% as a fractionThe same number as a percentage, with the work shown.Fraction–decimal chartThe everyday set, printable.Rule charts16ths, 32nds, 64ths, 128ths.The rulerSee 83/100 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.