Exposure value to shutter seconds
Type a value in EV to get it in s instantly.
0.007656s
That's about the same as an overcast day. That is about 4,096 times the light of EV 0.
What it means
How much light is that?
All values are at ISO 100. Shutter speeds assume f/5.6 and apertures assume 1/60 s, since EV fixes only the combination, not either one alone.
The math
How to convert EV to s
Exposure value is logarithmic: EV = log₂(N² ÷ t) for aperture N and shutter time t, and each step of one either doubles or halves the light. Lux follows as lux = 2.5 × 2^EV at ISO 100.
Example: 12 EV = 0.00765625 s.
Every unit
Your exposure in every unit
Tables
EV to s conversion table
| EV | s |
|---|---|
| -2 EV | 125.44 s |
| 0 EV | 31.36 s |
| 2 EV | 7.84 s |
| 4 EV | 1.96 s |
| 6 EV | 0.49 s |
| 8 EV | 0.1225 s |
| 10 EV | 0.030625 s |
| 12 EV | 0.00765625 s |
| 14 EV | 0.00191406 s |
| 15 EV | 0.000957031 s |
| 16 EV | 0.000478516 s |
| 18 EV | 0.000119629 s |
s to EV conversion table
| s | EV |
|---|---|
| 0.00012 s | 17.9955 EV |
| 0.000479 s | 15.9985 EV |
| 0.000957 s | 15 EV |
| 0.00191 s | 14.0031 EV |
| 0.00766 s | 11.9993 EV |
| 0.0306 s | 10.0012 EV |
| 0.123 s | 7.99412 EV |
| 0.49 s | 6 EV |
| 1.96 s | 4 EV |
| 7.84 s | 2 EV |
| 31.4 s | -0.001839 EV |
| 125 s | -1.99493 EV |
Quick answers
Quick answers
- How many s is 1 EV?
- 1 EV is 15.68 s.
- How many s is 10 EV?
- 10 EV is 0.030625 s.
- How many s is 12 EV?
- 12 EV is 0.00765625 s.
The units
About these units
Exposure value (EV)
The photographer’s scale at ISO 100. Each step is one doubling of light.
Shutter seconds (s)
The shutter time that captures this light at f/5.6.
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