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5/16 inch to decimal

The exact decimal value of 5/16 of an inch, with millimetres, centimetres and decimal feet — the numbers a tape or a caliper actually shows.

5/16 inch =

=0.3125 in

Decimal inch

0.3125"

Millimetres

7.9375 mm

Centimetres

0.79375 cm

Decimal feet

0.026042 ft

How it's figured

5 ÷ 16

A fraction of an inch is just the top number divided by the bottom: 5 ÷ 16 = 0.3125". For metric, one inch is exactly 25.4 mm, so 0.3125" × 25.4 = 7.9375 mm. TapeMath keeps this exact as a fraction internally, so it never drifts the way a rounded decimal can.

Fractions nearby

The sixty-fourths around 5/16"

Fraction	Decimal inch	Millimetres
17/64"	0.265625	6.746875 mm
9/32"	0.28125	7.14375 mm
19/64"	0.296875	7.540625 mm
5/16"	0.3125	7.9375 mm
21/64"	0.328125	8.334375 mm
11/32"	0.34375	8.73125 mm
23/64"	0.359375	9.128125 mm

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