Imperial to Metric Converter
Convert imperial units to metric units
1 in =
25.4
Millimeters (mm)
All length Conversions
Inches to Millimeters1 in = 25.4 mm
Inches to Centimeters1 in = 2.54 cm
Feet to Meters1 ft = 0.3048 m
Yards to Meters1 yd = 0.9144 m
Miles to Kilometers1 mi = 1.60934 km
Quick Reference
1 inch
= 2.54 cm
1 pound
= 0.45 kg
1 gallon
= 3.79 liters
32°F
= 0°C
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: NIST Guide to SI Units
by National Institute of Standards
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.