What is the difference b/w double and float?

Answer 1

A double has 15 decimal digits of precision,
while float has 7.

Answer 2

The Decimal, Double, and Floatvariable types are different in the way that they store the values. Precision is the main difference where float is a single precision (32 bit) floating point data type, double is a double precision (64 bit) floating point data type and decimal is a 128-bit floating point data type.