Shutter Angle to Exposure Calculator
Find exposure duration from frame rate and shutter angle.
Your inputs
Calculation results
Formula & assumptions
Exposure seconds = angle/(360 × FPS).
Values use the specified units. Calculations use floating-point arithmetic. Check input measurements and formula assumptions before applying the result.
Compare your scenarios
Save up to five results to compare changes side by side. Scenarios stay in this tab until you clear or reload it.
Using Shutter Angle to Exposure Calculator
Find exposure duration from frame rate and shutter angle.
- Enter frame rate, shutter angle using the units printed under each field.
- Choose Calculate, or enable live updates. Review the result labels and formula assumptions.
- Save scenarios to compare up to five variations, then copy the report or download JSON or CSV.
Example
Frame rate: 24 frames per second Shutter angle: 180 degrees Exposure · seconds: 0.020833333 Reciprocal shutter denominator: 48 Exposure · milliseconds: 20.833333
Questions & answers
What does Shutter Angle to Exposure Calculator calculate?
Find exposure duration from frame rate and shutter angle.
Which units should I enter?
Frame rate uses frames per second. Shutter angle uses degrees. Convert values to these units before calculating.
Which formula does it use?
Exposure seconds = angle/(360 × FPS).
What does the included example show?
Frame rate: 24 frames per second; Shutter angle: 180 degrees. Result: Exposure · seconds = 0.020833333; Reciprocal shutter denominator = 48; Exposure · milliseconds = 20.833333.
Can I compare different settings?
Yes. Save a scenario, change the inputs and save another result. Up to five scenarios are compared in this tab; they disappear when you reload or leave.
Can I export the calculation?
Copy the JSON report or download JSON and CSV with inputs, result labels and numeric values. Processing uses local JavaScript; no calculation request is sent to our server. Displayed values use up to 10 significant digits; exports retain JavaScript numeric precision.
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