Practical measurement guide

MM to Inch Chart

Look up common millimeter values in decimal inches and nearby ruler-friendly values.

MM to Inch Chart provides server-rendered reference rows and links to calculators for custom measurements.
in
Decimals and fractions work, for example 1.5, 1/2, or 1 1/2.
cm
Try a value
Fractions
10 in = 25.4 cm
10 in × 2.54 = 25.4 cm
Decimal inches10 in
Feet + inches0 ft 10 in
Nearest 1/16 inch10"

How to use this chart

Use the table for quick lookup, then use the converter when you need a custom value or more decimal precision.

Reference rows

MM to Inch Chart reference rows
InputOutputNote
1 inch25.4 mmExact inch definition
1 foot0.3048 mExact foot definition
1 meter100 cmMetric scaling

CSV and filtering note

The table is server-rendered for crawling and accessibility. If filtering or CSV export is added later, it should not create indexable query-parameter pages.

Frequently asked questions

Are chart values exact?

Metric-to-metric values are exact; imperial-to-metric values use the official length definitions and may be rounded for display.

Should I use a chart or calculator?

Use the chart for common values and the calculator for custom measurements.

Do charts create indexed filter pages?

No. Filtering must not create indexable query-parameter URLs.