Converting feet into meters is the calculation that lets an American blueprint, a European building code and an international flight plan all speak the same numeric language. This tool does it instantly and precisely.
A unit fixed by international treaty, not nature
Unlike the meter — originally meant to be a natural fraction of the Earth's circumference — the foot has no such physical anchor; it evolved from centuries of regional English and Roman measurement practice with no single consistent definition until quite recently. That changed in 1959, when the United States, United Kingdom, Australia, Canada, New Zealand and South Africa signed the International Yard and Pound Agreement, fixing the foot at exactly 0.3048 meters — a rare case of imperial units being formally redefined in metric terms rather than the other way around.
How the conversion works
Because the foot is now defined as exactly 0.3048 meters, converting feet to meters is a single, exact multiplication with no rounding error introduced by the definition itself — the tool multiplies your feet value by 0.3048 and returns the result, typically to three or four decimal places for practical use.
Common real-world uses
- Importing U.S. architectural or engineering drawings into metric-standard software or metric countries' permitting systems.
- Hiking and elevation data — many U.S. trail signs and topographic maps list elevation in feet, which international hikers using metric GPS devices need converted.
- Home and DIY projects — comparing furniture or material dimensions between U.S. retailers (feet/inches) and international ones (centimeters/meters).
- Ceiling heights, pool depths and other everyday U.S. measurements that need translating for an international audience.
Frequently asked questions
Is this conversion exact or approximate? Exact — since 0.3048 is the legally defined value of the international foot, multiplying by it introduces no error beyond ordinary floating-point rounding in the final decimal places.
How do I convert feet and inches together (like 5'11")? Convert the inches to a fraction of a foot first (divide by 12), add it to the foot value, then multiply the combined total by 0.3048 — this tool accepts decimal feet, so 5'11" becomes 5.9167 ft before conversion.
Why do U.S. building plans still use feet at all? Historical inertia — the construction industry, lumber dimensions (like the "2x4"), and local building codes are all built around imperial measurements, making a full switch to metric commercially disruptive despite the rest of the world's construction industry operating in metric.
Further reading
Wikipedia — International yard and pound — The 1959 agreement that fixed the foot at exactly 0.3048 meters.