Foot to Span Converter

Length Converter

31 units available

Decimals:

From

To

1.333333

1 ft = 1.333333 span

Formula:

span = ft × 1.3333333333

With your value: 1 ft = 1.33333333 span

How big is that?

Everyday references on a logarithmic scale, all expressed in foot so you can sanity-check the result.

Credit card (long side) (1/3.6 your value)0.281 ft

A4 sheet (height) (1/1.0 your value)0.974 ft

Your value1.00 ft

Adult stride (2.5× your value)2.46 ft

Standard door height (6.6× your value)6.56 ft

London double-decker bus (36× your value)36.1 ft

Other Foot to Span conversions

2 ft to span 3 ft to span 4 ft to span 5 ft to span 6 ft to span 7 ft to span 8 ft to span

Foot to Span Conversion Table

Foot (ft)	Span (span)
0.5	0.666667
1	1.333333
2	2.666667
5	6.666667
10	13.333333
15	20
20	26.666667
25	33.333333
50	66.666667
100	133.333333
250	333.333333
500	666.666667
1000	1,333.333333

Span to Foot Conversion Table

Span (span)	Foot (ft)
0.5	0.375
1	0.75
2	1.5
5	3.75
10	7.5
15	11.25
20	15
25	18.75
50	37.5
100	75
250	187.5
500	375
1000	750

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Foot (ft)

Length

Exact conversion

1 foot = 0.3048 m exactly (international foot, 1959).

The US survey foot (1200/3937 m) was deprecated for new work on 31 December 2022 and differs by about 2 ppm.

Source: International Yard and Pound Agreement of 1959; NIST Federal Register Notice 59-5442

US, UK, Canada, Australia, New Zealand, South Africa · Reviewed 2026-07-01

Span (span)

Length

Exact conversion

Traceable to the metre, defined by fixing the speed of light in vacuum at 299 792 458 m/s. Imperial lengths derive from the 1959 international yard (0.9144 m exactly).

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

How to Convert Foot to Span

To convert from Foot (ft) to Span (span), multiply the value by 1.3333333333.

Formula: span = ft × 1.3333333333

Reverse: ft = span × 0.75

Step-by-Step Example

Start with your value in Foot. For example: 5 ft
Multiply by the conversion factor: 5 x 1.3333333333
The result is: 6.666667 span

About Foot

The foot is an imperial unit equal to 12 inches or 0.3048 meters. It remains widely used in the US, UK, and Canada for everyday measurements.

Fun Fact: The foot was originally based on the length of a human foot, which varied from region to region.

Common uses: height measurement, real estate, construction.

About Span

The span (span) is a unit of distance and length. One span equals 0.2286 metres. UnitConvertLab converts it against every other length unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

Common uses: length calculations, engineering and science, education.

Frequently Asked Questions

How many Span are in 1 Foot?

There are exactly 1.3333333333 Span in 1 Foot. This means the conversion factor from Foot to Span is 1.3333333333.

What is the formula to convert Foot to Span?

The formula to convert Foot to Span is: span = ft × 1.3333333333. For example, to convert 10 Foot to Span, you would multiply 10 by 1.3333333333.

What is a Foot?