Enter your figures
Use the values that match your situation and the units shown in the form.
Exposure Value EV100 Calculator
Calculate EV100 from aperture and shutter time using the standard log2(N²/t) relationship.
🇬🇧 UK context⚡ Instant result🔒 Browser-based inputs
s
Estimated result
—
Review the estimate
Results include the main answer plus supporting figures where useful.
Check official rules when needed
Tax, benefits and legal thresholds can change or depend on individual circumstances.