How to convert inches to meters
To convert a measurement in inches to meters, multiply the value by 0.0254. The conversion factor comes from the relationship between both units and the meter (the SI base unit of length).
For example, to convert 5 in to meters: 5 × 0.0254 = 0.127 m.
What is a inch?
An inch is an imperial unit of length equal to 1/12 of a foot or exactly 25.4 millimeters. Originally defined as the width of a man's thumb, later standardized as three barleycorns laid end to end. Since 1959, defined internationally as exactly 25.4 mm.
Common uses of inches include: Screen and display sizes (TV, phone, monitor diagonals); Screw, bolt, and pipe sizing; Tire rim diameter specifications; Woodworking and carpentry precision.
What is a meter?
A meter is the SI base unit of length, defined as the distance light travels in vacuum in 1/299,792,458 of a second. Originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole. Redefined in 1983 using the speed of light, making it one of the most precisely defined units in science.
Common uses of meters include: Building construction and architecture; Athletic track events (100m, 200m, 400m); Room dimensions and furniture sizing; Scientific measurements and lab work.
When you need to convert inches to meters
Converting inches to meters is useful in scientific calculations, international trade, and any context where measurements need to be expressed in the other system for clarity or compliance.
Inches to meters worked examples
Here are some common values converted:
1 in = 0.0254 m 5 in = 0.127 m 10 in = 0.254 m 50 in = 1.27 m 100 in = 2.54 m
Frequently asked questions
How many meters are in one inch?
One inch (in) equals 0.0254 meters (m). Multiply any value in inches by 0.0254 to convert to meters.
How do I convert inches to meters?
Multiply the value in inches by 0.0254. For example, 5 in × 0.0254 = 0.127 m.
How do I convert meters to inches?
Multiply the value in meters by 39.370079, or divide by 0.0254. Use the swap button on the converter above to reverse the direction.
Is the inch to meter conversion exact?
Yes, the conversion is exact. Since 1959, one inch is defined as exactly 25.4 mm (the international yard and pound agreement), so all metric-imperial length conversions use exact factors.
What is the formula for inches to meters?
The formula is: m = in × 0.0254. This is derived from the definition of both units relative to the meter (the SI base unit of length).