IEEE 754 Floats

Published: September 10, 2025, updated: September 10, 2025

This is a tool to help you visualize how IEEE 754 floating point numbers are represented in memory. Specifically, this tool handles single precision nubmbers, but there are many other IEEE 754 number formats

Single precision floating point numbers have 23 binary digits in their significand and 8 binary digits in their exponent.

Bit layout

IEEE 754 single-precision bit layout Shows sign bit, exponent (8 bits), and fraction (23 bits) with current value 0 1 - sign exponent (8 bits) fraction (23 bits) 31 30 23 22 0
Attribution: Fresheneesz at the English Wikipedia project. Licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.

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