Powers of 2 Table (2^0 to 2^64)

A power of 2 is 2 multiplied by itself: 2⁰=1, 2¹=2, 2²=4, and so on. Powers of two are everywhere in computing — bytes, kilobytes, memory sizes, bit masks and binary numbers. This table lists 2⁰ through 2⁶⁴.

Why powers of 2 matter

Computers store data in bits, so capacities are powers of two: 2¹⁰ = 1,024 (1 KiB), 2²⁰ ≈ 1 million (1 MiB), 2³⁰ ≈ 1 billion (1 GiB). An n-bit number can represent 2ⁿ distinct values.

Related tools & charts

• Decimal to Binary
• Decimal to Hex
• Binary/Hex/Decimal Table