1/4 as a decimal

1/4 = 0.25

25% · 1 ÷ 4 = 0.25 · the decimal ends after 2 places

As a measurement: 1/4″ = 0.25″ = 6.35 mm

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A bar cut into 4 equal parts with 1 shaded, over a line from 0 to 1 marked at 0.25.

Type it as 5/8, or a mixed number as 2 1/2.

As a decimal

0.25

25% · 1 ÷ 4

How to turn 1/4 into a decimal

Divide the top number by the bottom one: 1 ÷ 4. 4 does not go into 1, so write 0 and a decimal point, put a 0 after the 1 and divide:

  1. 10 ÷ 4 = 2, remainder 2 (2 × 4 = 8)
  2. Bring down a 0: 20 ÷ 4 = 5, remainder 0 (5 × 4 = 20). Remainder 0, so the division ends: 1/4 = 0.25

To read it as a percentage, move the decimal point two places to the right: 25%.

1/4 rounded

Decimal places1/4
10.3
20.25 (exact)

All the quarters as decimals

FractionDecimalPercent
1/40.2525%
2/4 = 1/20.550%
3/40.7575%

On a tape measure or a drill set, 1/4 inch is 0.25 inch, 6.35 mm.

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