Sqratch Tools / Converters / Length Unit Converter
Length Unit Converter
Type a value on either side; both fields convert instantly and the working is shown. Swap flips the pair.
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Basis & Assumptions
- 1 in = 25.4 mm and 1 ft = 304.8 mm exactly (international foot); all conversions are definitional.
- The feet-and-inches reading rounds inches to the nearest 1/8" the way builders write dimensions.
For quick design checks and study, not a substitute for your local Development Control Regulations, NBC provisions, or a licensed professional's judgement. Always verify against the bye-laws that apply to your site.
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