Luminous Flux

Candela Steradians to Lumens Converter

Convert candela steradians (cd⋅sr) to lumens (lm). 1 candela steradian = 1 lumen (exact)

1 candela steradian = 1 lumens

How to convert candela steradians to lumens

Formulalm = cd⋅sr × 1

Multiply the value in candela steradians by 1. To go the other way, multiply by 1 (or divide by 1).

The two units are the same size.

Worked examples

  • 1 candela steradian1 cd⋅sr × 1 = 1 lm
  • 5 candela steradians5 cd⋅sr × 1 = 5 lm
  • 10 candela steradians10 cd⋅sr × 1 = 10 lm
  • 20 candela steradians20 cd⋅sr × 1 = 20 lm
  • 100 candela steradians100 cd⋅sr × 1 = 100 lm

Candela steradians to lumens conversion table

Values are calculated by the conversion engine and rounded to 8 significant figures.

Candela steradians to lumens: 0.1–10 cd⋅sr
Candela steradians (cd⋅sr)Lumens (lm)
0.1 cd⋅sr0.1 lm
0.25 cd⋅sr0.25 lm
0.5 cd⋅sr0.5 lm
1 cd⋅sr1 lm
2 cd⋅sr2 lm
3 cd⋅sr3 lm
4 cd⋅sr4 lm
5 cd⋅sr5 lm
6 cd⋅sr6 lm
7 cd⋅sr7 lm
8 cd⋅sr8 lm
9 cd⋅sr9 lm
10 cd⋅sr10 lm
Candela steradians to lumens: 12–1,000 cd⋅sr
Candela steradians (cd⋅sr)Lumens (lm)
12 cd⋅sr12 lm
15 cd⋅sr15 lm
20 cd⋅sr20 lm
25 cd⋅sr25 lm
30 cd⋅sr30 lm
40 cd⋅sr40 lm
50 cd⋅sr50 lm
75 cd⋅sr75 lm
100 cd⋅sr100 lm
250 cd⋅sr250 lm
500 cd⋅sr500 lm
1,000 cd⋅sr1,000 lm

About the units

Candela steradian (cd⋅sr)

The candela steradian (cd⋅sr) is a unit of luminous flux in the International System of Units (SI). One candela steradian equals 1 lumen (lm).

Lumen (lm)

The SI unit of luminous flux: one candela over one steradian.

Frequently asked questions

How many lumens are in one candela steradian?

There is 1 lumen in one candela steradian, and this value is exact by definition.

How do I convert candela steradians to lumens?

Multiply the number of candela steradians by 1. For example, 10 cd⋅sr × 1 = 10 lm.

How many candela steradians are in one lumen?

One lumen equals 1 candela steradian. That is the reverse factor, 1 ÷ 1.

What is 10 candela steradians in lumens?

10 cd⋅sr = 10 lm.

Is this cd⋅sr to lm converter accurate?

Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.

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