Feet to Meters

Feet to Meters: Complete Guide to Converting Imperial to Metric Length

Converting feet to meters is one of the most frequently needed length conversions in the world. The foot (plural: feet, symbol: ft or ′) is the primary unit of length in the United States customary system and the British imperial system, while the meter (symbol: m) is the base unit of length in the International System of Units (SI) used by virtually every other country. Whether measuring height, room dimensions, building plans, athletic distances, or real estate, understanding the feet-to-meters conversion is essential for global communication.

The Conversion Formula

Converting feet to meters is straightforward: meters = feet × 0.3048. This factor is exact — defined by the 1959 International Yard and Pound Agreement, which established 1 yard = 0.9144 meters exactly, making 1 foot (1/3 yard) = 0.3048 meters. For example, 6 feet = 6 × 0.3048 = 1.8288 meters. For feet-and-inches input: first convert to decimal feet (e.g., 5′10″ = 5 + 10/12 = 5.833 ft), then multiply by 0.3048. Quick mental approximation: multiply feet by 0.3 for a rough estimate (6 ft ≈ 1.8 m, actual: 1.83 m).

Common Height Conversions

Height conversion is the most common use case: 5′0″ = 1.524 m, 5′4″ = 1.626 m, 5′6″ = 1.676 m, 5′8″ = 1.727 m, 5′10″ = 1.778 m, 6′0″ = 1.829 m, 6′2″ = 1.880 m, 6′4″ = 1.930 m, 6′6″ = 1.981 m. Average heights globally: US men 5′9″ (1.75 m), US women 5′4″ (1.63 m). International passports, medical records, and athletic profiles often require height in meters or centimeters, making this conversion essential for international communication and documentation.

Construction and Real Estate

In construction, feet-to-meters conversion matters for international projects. A standard US room with 8-foot ceilings = 2.44 m. Standard door height of 6′8″ = 2.03 m. A 2,000 square foot home = 185.8 square meters. Building codes vary internationally: US codes specify dimensions in feet while European and Asian codes use meters. Architectural drawings for international clients require accurate conversion. Lumber dimensions are nominal in feet but actual dimensions differ (a "2×4" is actually 1.5×3.5 inches = 38×89 mm).

Sports and Athletics

Sports frequently cross unit boundaries. A football field is 100 yards (300 ft = 91.44 m), while a soccer pitch is 100–110 m (328–361 ft). Basketball courts are 94 ft (28.65 m) in the NBA. Track events use meters internationally: the 100m dash corresponds to about 328 ft. High jump records are in meters (2.45 m = 8′0.5″), pole vault in meters (6.26 m = 20′6.5″). Golf uses yards in the US but meters internationally. Swimming pools are 25 m (82 ft) or 50 m (164 ft). Understanding both systems helps fans and athletes follow international competitions.

Aviation and Navigation

Aviation is a unique domain where feet remain the international standard for altitude. Aircraft altitude is measured in feet worldwide (FL350 = 35,000 ft = 10,668 m), even in metric countries. However, runway lengths are specified in meters internationally. Visibility is reported in meters (or kilometers) in METAR weather reports outside the US. This creates a dual-unit environment where pilots must be fluent in both systems. Flight levels above 18,000 ft use standard pressure altitude, and the transition between feet and meters in different national airspaces requires precise conversion.

History of the Foot

The foot as a unit of measurement dates back to ancient civilizations. The Roman foot (pes) was about 29.6 cm, and various regional feet existed throughout Europe until standardization. The English foot was standardized by law multiple times, eventually settling at its current definition. In 1959, the international foot was defined as exactly 0.3048 meters by agreement between the US, UK, Canada, Australia, New Zealand, and South Africa. Before this, the US used a slightly different survey foot (1 ft = 1200/3937 m), which was officially phased out in 2023.

The Metric System and Global Adoption

The meter was originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole. Today it is defined as the distance light travels in vacuum in 1/299,792,458 of a second, making it one of the most precisely defined units in science. Only three countries have not officially adopted the metric system: the United States, Myanmar, and Liberia. However, even the US uses metric in science, medicine, military, and international trade. The ongoing coexistence of feet and meters creates a constant need for conversion in construction, engineering, aviation, sports, and everyday life.

How to Use This Converter

Enter feet and inches separately (e.g., 5 ft 10 in for 5′10″). The calculator combines them automatically and converts to meters with live calculation as you type. The dual ruler shows feet (amber) on top and meters (green) on bottom with your value highlighted. The height reference card gives an intuitive size comparison. All equivalent units display: meters, feet, centimeters, inches, yards, millimeters. The step-by-step section shows the complete calculation. The reference table covers common values from 0.5 ft to 1000 ft with your input highlighted.