Megapixels are just width × height ÷ one million. Enter pixel dimensions to get megapixels, or enter megapixels and an aspect ratio to see the image size — useful for comparing cameras and planning crops and prints.
How it works
MP = W × H ÷ 10⁶; W = √(MP × 10⁶ × ratio).
FAQ
Does doubling megapixels double print size?
No — it increases linear size by √2 (about 41%).
Related tools
Print Size CalculatorAspect Ratio CalculatorMemory Card CalculatorRAW File Size CalculatorFile Transfer Time CalculatorScreen PPI Calculator
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