Lumens per steradian to Candelas Converter

ConversionEdited by Hemant Kumar and Anjita Rai, founders · How we checkUpdated Free · No sign-up

Quick answer: To convert lumens per steradian to candelas, multiply by 1. For example, 10 lm/sr is 10 cd. One lumen per steradian equals 1 cd.

Use the Lumens per steradian to Candelas Converter

Lumens per steradian to Candelas formula and what each symbol means

cd = lm/sr × 1

Symbols used in the formula
SymbolMeaning
lm/srLumen per steradian
cdCandela

Lumens per steradian to Candelas examples

1 lm/sr

1 lm/sr × 1 = 1 cd.

10 lm/sr

10 lm/sr × 1 = 10 cd.

100 lm/sr

100 lm/sr × 1 = 100 cd.

Lumens per steradian compared with Candelas

One lm/sr and one cd are almost the same size, so the numbers stay close; check the factor for the small difference.

About lumens per steradian and candelas

Lumen per steradian (lm/sr): Lumen per steradian, equal to one candela. Candela (cd): The candela, the SI base unit of luminous intensity.

How to calculate Lumens per steradian to Candelas step by step

  1. Enter the value in lm/sr (the starting unit).
  2. Multiply by 1, because 1 lm/sr = 1 cd.
  3. The product is the value in cd. To go back, divide by 1 or multiply by 1.

Popular luminous intensity conversions

How to read your Lumens per steradian to Candelas result

Luminous intensity is light power per unit solid angle.

LUMENS PER STERADIANCANDELAS
11
22
55
1010
2020
5050
100100
1,0001,000

Candelas to Lumens per steradian: quick table

CANDELASLUMENS PER STERADIAN
11
55
1010
2525
5050
100100
250250
500500

Common mistakes when calculating Lumens per steradian to Candelas

  • Confusing luminous intensity (cd) with luminous flux (lm).
  • Dividing when you should multiply: from lm/sr to cd multiply by 1; from cd to lm/sr divide by 1.

Lumens per steradian to Candelas FAQ

How many cd are in 1 lm/sr?

1 lm/sr equals 1 cd.

How many lm/sr are in 1 cd?

1 cd equals 1 lm/sr.

Is 1 lm/sr = 1 cd an exact conversion?

The factor is shown rounded to 7 significant figures (1). The calculator above uses more digits.

What is a candela (cd)?

The candela, the SI base unit of luminous intensity.

How can I estimate lumens per steradian to candelas in my head?

One lm/sr and one cd are almost the same size, so the numbers stay close; check the factor for the small difference.

What is 3 lm/sr in candelas?

3 lm/sr = 3 cd (since 3 × 1).

What is 30 lm/sr in candelas?

30 lm/sr = 30 cd (since 30 × 1).

What is 150 lm/sr in candelas?

150 lm/sr = 150 cd (since 150 × 1).

How many decimals should I keep when converting lm/sr to cd?

Match the precision of your original measurement. For example, 10 cd rounds to 10 cd at 3 significant figures; keep more digits only for engineering or scientific work.

Method, review and disclaimer

Edited by: Hemant Kumar and Anjita Rai, founders of ToolsVault (SEO and content professional, not a licensed adviser). Method: this tool runs in your browser using the formula shown on this page; the numbers you enter are not sent to our servers. Sources: NIST SP 811, Appendix B.8: conversion factors, BIPM: the International System of Units (SI)