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🔍 Focal Length Calculator
Crop Factor
Magnification
Subject Distance
Crop Factor Calculator
Equivalent FL = Actual FL × Crop Factor
Actual Focal Length (mm)
Camera Sensor
Full Frame (35mm) - 1.0x
APS-C Canon - 1.6x
APS-C Nikon/Sony - 1.5x
Micro Four Thirds - 2.0x
1 inch - 2.7x
Smartphone - 6.0x
Custom Crop Factor
Custom Crop Factor
Calculate Equivalent Focal Length
75mm
35mm equivalent
Focal Length Analysis
Magnification Calculator
Magnification = Focal Length ÷ Subject Distance
Focal Length (mm)
Subject Distance (meters)
Sensor Size
Full Frame (36×24mm)
APS-C (23.6×15.6mm)
Micro 4/3 (17.3×13mm)
1 inch (13.2×8.8mm)
Calculate Magnification
1:20
Magnification Ratio
Magnification Analysis
Subject Distance Calculator
Distance = Focal Length ÷ Magnification
Focal Length (mm)
Desired Magnification
Subject Type
Portrait
Landscape
Wildlife
Macro
Sports
Architecture
Calculate Subject Distance
2.0m
recommended distance
Distance Analysis