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Micromoles per square meter per second to daily light integral, 12 hours

Type a value in µmol/m²/s to get it in mol/m²/day instantly.

17.28mol/m²/day

That's 1.33× as bright as seedlings under lights, while a flowering crop is 2× brighter. Over a 12-hour day that is a light integral of about 17.28 mol/m².

What it means

How much light is that?

Lux and PPFD relate differently for every light source, because lux weights by the human eye. The 54 lux per µmol used here is the daylight figure; a red-heavy LED can be half that.

The math

How to convert µmol/m²/s to mol/m²/day

To convert micromoles per square meter per second to daily light integral, 12 hours, multiply by 0.0432.

Example: 400 µmol/m²/s × 0.0432 = 17.28 mol/m²/day.

In the other direction, 1 mol/m²/day = 23.1481 µmol/m²/s.

Every unit

Your light level in every unit

Tables

µmol/m²/s to mol/m²/day conversion table

µmol/m²/s to mol/m²/day conversion table
µmol/m²/smol/m²/day
10 µmol/m²/s0.432 mol/m²/day
50 µmol/m²/s2.16 mol/m²/day
100 µmol/m²/s4.32 mol/m²/day
200 µmol/m²/s8.64 mol/m²/day
300 µmol/m²/s12.96 mol/m²/day
400 µmol/m²/s17.28 mol/m²/day
600 µmol/m²/s25.92 mol/m²/day
800 µmol/m²/s34.56 mol/m²/day
1,000 µmol/m²/s43.2 mol/m²/day
1,500 µmol/m²/s64.8 mol/m²/day
2,000 µmol/m²/s86.4 mol/m²/day
mol/m²/day to µmol/m²/s conversion table
mol/m²/day to µmol/m²/s conversion table
mol/m²/dayµmol/m²/s
10 mol/m²/day231.481 µmol/m²/s
50 mol/m²/day1,157.41 µmol/m²/s
100 mol/m²/day2,314.81 µmol/m²/s
200 mol/m²/day4,629.63 µmol/m²/s
300 mol/m²/day6,944.44 µmol/m²/s
400 mol/m²/day9,259.26 µmol/m²/s
600 mol/m²/day13,888.9 µmol/m²/s
800 mol/m²/day18,518.5 µmol/m²/s
1,000 mol/m²/day23,148.1 µmol/m²/s
1,500 mol/m²/day34,722.2 µmol/m²/s
2,000 mol/m²/day46,296.3 µmol/m²/s

Quick answers

Quick answers

How many mol/m²/day is 1 µmol/m²/s?
1 µmol/m²/s is 0.0432 mol/m²/day.
How many mol/m²/day is 10 µmol/m²/s?
10 µmol/m²/s is 0.432 mol/m²/day.
How many mol/m²/day is 400 µmol/m²/s?
400 µmol/m²/s is 17.28 mol/m²/day.

The units

About these units

Micromoles per square meter per second (µmol/m²/s)

PPFD, the standard for grow lights: photons landing per second.

Daily light integral, 12 hours (mol/m²/day)

The whole day’s photons, over a 12-hour photoperiod.

Learn more about light level units

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