The two rulers

Inches and centimeters  (cm) in comparison converter

inch
cm

Conversion of length or distance
Inches and feet to centimeters and meters - and vice versa

Enter the known length (distance) on the appropriate line.
The other boxes will show the conversions.
You don't need a calculate bar.
Attention: Do not re-enter the exact number of an answer.

 inches feet yards millimeters centimeters meters    reset
 Notice: 1 inch = 2.54 cm exact = 25.4 mm and 1 foot (feet) = 12 inch (inches) = 30.48 cm 1 yard yd = 0.9144 m = 36 inches (in) = 3 feet (ft) and 1 land mile = 5280 feet = 1609.344 m 1 m (meter) = 10 dm (decimeters) = 100 cm = 1,000 mm and 1 cm = 10 mm = 0.1 dm = 0.01 m 1 km (kilometer) = 1000 m (meters) = 100,000 cm (centimeters) = 1,000,000 mm (millimeters)

Conversion of fractions to decimals to mm

 inch inch mm 1/64 0.016 0.397 1/32 0.031 0.794 3/64 0.047 1.191 1/16 0.063 1.588 5/64 0.078 1.984 3/32 0.094 2.381 7/64 0.109 2.778 1/8 0.125 3.175 9/64 0.141 3.572 5/32 0.156 3.969 11/64 0.172 4.366 3/16 0.188 4.763 13/64 0.203 5.159 7/32 0.219 5.556 15/64 0.234 5.953 1/4 0.250 6.350 17/64 0.266 6.747 9/32 0.281 7.144 19/64 0.297 7.541 5/16 0.313 7.938 21/64 0.328 8.334 11/32 0.344 8.731 23/64 0.359 9.128 3/8 0.375 9.525 25/64 0.391 9.922 13/32 0.406 10.319 27/64 0.422 10.716 7/16 0.438 11.113 29/64 0.453 11.509 15/32 0.469 11.906 31/64 0.484 12.303 1/2 0.500 12.700
 inch inch mm 33/64 0.516 13.097 17/32 0.531 13.494 35/64 0.547 13.891 9/16 0.563 14.288 37/64 0.578 14.684 19/32 0.594 15.081 39/64 0.609 15.478 5/8 0.625 15.875 41/64 0.641 16.272 21/32 0.656 16.669 43/64 0.672 17.066 11/16 0.688 17.463 45/64 0.703 17.859 23/32 0.719 18.256 47/64 0.734 18.653 3/4 0.750 19.050 49/64 0.766 19.447 25/32 0.781 19.844 51/64 0.797 20.241 13/16 0.813 20.638 53/64 0.828 21.034 27/32 0.844 21.431 55/64 0.859 21.828 7/8 0.875 22.225 57/64 0.891 22.622 29/32 0.906 23.019 59/64 0.922 23.416 15/16 0.938 23.813 61/64 0.953 24.209 31/32 0.969 24.606 63/64 0.984 25.003 1 1.000 25.400