Stilb to Foot-Lambert Converter

Luminance Converter

5 units available

Decimals:

From

To

2,918.635088

1 sb = 2,918.635088 fL

Formula:

fL = sb × 2,918.6350878094

With your value: 1 sb = 2,918.63508781 fL

Other Stilb to Foot-Lambert conversions

2 sb to fL 3 sb to fL 4 sb to fL 5 sb to fL 6 sb to fL 7 sb to fL 8 sb to fL

Stilb to Foot-Lambert Conversion Table

Stilb (sb)	Foot-Lambert (fL)
0.5	1,459.317544
1	2,918.635088
2	5,837.270176
5	14,593.175439
10	29,186.350878
15	43,779.526317
20	58,372.701756
25	72,965.877195
50	145,931.75439
100	291,863.508781
250	729,658.771952
500	1,459,317.543905
1000	2,918,635.087809

Foot-Lambert to Stilb Conversion Table

Foot-Lambert (fL)	Stilb (sb)
0.5	0.000171
1	0.000343
2	0.000685
5	0.001713
10	0.003426
15	0.005139
20	0.006853
25	0.008566
50	0.017131
100	0.034263
250	0.085656
500	0.171313
1000	0.342626

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.

Stilb (sb)

Luminance

Exact conversion

Traceable to the candela, defined by fixing the luminous efficacy of 540 THz radiation at 683 lm/W.

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

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

Foot-Lambert (fL)

Luminance

Exact conversion

Traceable to the candela, defined by fixing the luminous efficacy of 540 THz radiation at 683 lm/W.

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 Stilb to Foot-Lambert

To convert from Stilb (sb) to Foot-Lambert (fL), multiply the value by 2,918.6350878094.

Formula: fL = sb × 2,918.6350878094

Reverse: sb = fL × 0.0003426259

Step-by-Step Example

Start with your value in Stilb. For example: 5 sb
Multiply by the conversion factor: 5 x 2,918.6350878094
The result is: 14,593.175439 fL

About Stilb

The stilb (sb) is a unit of luminance. One stilb equals 10000 candela per square metres. UnitConvertLab converts it against every other luminance unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

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

About Foot-Lambert

The foot-lambert (fL) is a unit of luminance. One foot-lambert equals 3.42625909 candela per square metres. UnitConvertLab converts it against every other luminance unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

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

Frequently Asked Questions

How many Foot-Lambert are in 1 Stilb?

There are exactly 2,918.6350878094 Foot-Lambert in 1 Stilb. This means the conversion factor from Stilb to Foot-Lambert is 2,918.6350878094.

What is the formula to convert Stilb to Foot-Lambert?

The formula to convert Stilb to Foot-Lambert is: fL = sb × 2,918.6350878094. For example, to convert 10 Stilb to Foot-Lambert, you would multiply 10 by 2,918.6350878094.

What is a Stilb?