tier_2 conversion

Convert lumen/square meter to phot

Convert lumen/square meter to phot with a verified formula, worked example, conversion table, precision guidance, and reverse conversion.

lumen/square meter to phot

lumen/square meter to phot

phot

Quick answer

1 lumen/square meter = 0.0001 phot.

Formula

phot = lumen/square meter × 0.0001

Precision

The stored factor is used at full decimal precision; round only the displayed result to the precision required by the task.

How to convert lumen/square meter to phot

  • Enter a value in lumen/square meter.
  • Use the scale factor 0.0001: phot equals lumen/square meter multiplied by this factor.
  • Round the displayed phot value only when needed.

About these units

lumen/square meter is a unit used in illumination conversions. Illuminance measures luminous flux received per unit area. Its recorded symbol is lm/m^2. phot is a unit used in illumination conversions. Illuminance measures luminous flux received per unit area. Its recorded symbol is ph.

Explore related conversions

lumen/square meter to phot conversion table

lumen/square meterphot
0 lumen/square meter0.0000 phot
1 lumen/square meter0.0001 phot
5 lumen/square meter0.0005 phot
10 lumen/square meter0.0010 phot
25 lumen/square meter0.0025 phot
100 lumen/square meter0.0100 phot

Frequently asked questions

How do I convert from lumen/square meter to phot?

Use the scale factor 0.0001: phot equals lumen/square meter multiplied by this factor.

What formula does CalculatorHQ use for lumen/square meter to phot?

phot = lumen/square meter × 0.0001

How should I round the result?

The stored factor is used at full decimal precision; round only the displayed result to the precision required by the task.

Can I convert phot back to lumen/square meter?

Yes. Use the linked reverse conversion, whose formula is validated against this pair with round-trip tests.