IEEE-754 Float Converter

Convert values between IEEE-754 hex and decimal for float32 and float64. Useful for UART/CAN payload decoding, memory dump analysis, and firmware debugging.

Converter

Input

Enter a value.

Result

Decimal—

Hex (BE)—

Hex (LE)—

Bytes (BE)—

Bytes (LE)—

Sign

—

Exponent

—

Fraction

—

How IEEE-754 fields work

IEEE-754 stores values as sign, exponent, and fraction. float32 uses 1/8/23 bits, and float64 uses 1/11/52 bits. Byte order affects how bytes are arranged in memory, not the mathematical value itself.

FAQ

Why do I get a different value in little-endian mode?

The same byte sequence can represent different bit patterns depending on byte order interpretation.

How is NaN shown?

When exponent bits are all ones and fraction is non-zero, IEEE-754 represents NaN.