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Technology Calculators

Bits, bytes, and everything in between. Every tool is free, with transparent formulas and worked examples.

Make sense of bits, bytes, decimal units, and binary units.

Estimate transfer duration with explicit file units, connection units and efficiency.

Simplify image proportions and resize one dimension while preserving the ratio.

Inspect CIDR blocks, masks, usable addresses and point-to-point exceptions.

Convert signed integers exactly and perform addition, subtraction or multiplication.

Calculate screen pixel density, active width and height, and pixel pitch from resolution and diagonal.