Daily light integral, 12 hours to micromoles per square meter per second
Type a value in mol/m²/day to get it in µmol/m²/s instantly.
That's 4.6× as bright as full midday sun — nothing on our list beats it. Over a 12-hour day that is a light integral of about 400 mol/m².
Convert the other way: µmol/m²/s to mol/m²/day
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 mol/m²/day to µmol/m²/s
To convert daily light integral, 12 hours to micromoles per square meter per second, multiply by 23.1481.
Example: 400 mol/m²/day × 23.1481 = 9,259.26 µmol/m²/s.
In the other direction, 1 µmol/m²/s = 0.0432 mol/m²/day.
Every unit
Your light level in every unit
Tables
mol/m²/day to µmol/m²/s conversion table
| mol/m²/day | µmol/m²/s |
|---|---|
| 10 mol/m²/day | 231.481 µmol/m²/s |
| 50 mol/m²/day | 1,157.41 µmol/m²/s |
| 100 mol/m²/day | 2,314.81 µmol/m²/s |
| 200 mol/m²/day | 4,629.63 µmol/m²/s |
| 300 mol/m²/day | 6,944.44 µmol/m²/s |
| 400 mol/m²/day | 9,259.26 µmol/m²/s |
| 600 mol/m²/day | 13,888.9 µmol/m²/s |
| 800 mol/m²/day | 18,518.5 µmol/m²/s |
| 1,000 mol/m²/day | 23,148.1 µmol/m²/s |
| 1,500 mol/m²/day | 34,722.2 µmol/m²/s |
| 2,000 mol/m²/day | 46,296.3 µmol/m²/s |
µmol/m²/s to mol/m²/day conversion table
| µmol/m²/s | mol/m²/day |
|---|---|
| 10 µmol/m²/s | 0.432 mol/m²/day |
| 50 µmol/m²/s | 2.16 mol/m²/day |
| 100 µmol/m²/s | 4.32 mol/m²/day |
| 200 µmol/m²/s | 8.64 mol/m²/day |
| 300 µmol/m²/s | 12.96 mol/m²/day |
| 400 µmol/m²/s | 17.28 mol/m²/day |
| 600 µmol/m²/s | 25.92 mol/m²/day |
| 800 µmol/m²/s | 34.56 mol/m²/day |
| 1,000 µmol/m²/s | 43.2 mol/m²/day |
| 1,500 µmol/m²/s | 64.8 mol/m²/day |
| 2,000 µmol/m²/s | 86.4 mol/m²/day |
Quick answers
Quick answers
- How many µmol/m²/s is 1 mol/m²/day?
- 1 mol/m²/day is 23.1481 µmol/m²/s.
- How many µmol/m²/s is 10 mol/m²/day?
- 10 mol/m²/day is 231.481 µmol/m²/s.
- How many µmol/m²/s is 400 mol/m²/day?
- 400 mol/m²/day is 9,259.26 µmol/m²/s.
The units
About these units
Daily light integral, 12 hours (mol/m²/day)
The whole day’s photons, over a 12-hour photoperiod.
Micromoles per square meter per second (µmol/m²/s)
PPFD, the standard for grow lights: photons landing per second.
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