Petabytes to Bits (PB to bit) Converter and Formula

1 petabyte equals 8,000,000,000,000,000 bits (8 x 10^15 bit) — multiply the number of petabytes by 8e15 to convert. A petabyte is 10^15 bytes and each byte is 8 bits, so one petabyte holds eight quadrillion bits in the decimal (SI) convention used here.

The formula

To convert petabytes to bits, multiply by 8,000,000,000,000,000:

bit = PB × 8e15

For example, 2 PB is 2 × 8e15 = 1.6e16 bits. To reverse it, divide by 8e15 (or multiply by 1.25e-16).

Conversion table

How to convert online

1. Type the number of petabytes into the first box.
2. Read the equivalent value in bits instantly in the second box.
3. Or enter a bit value to convert back to petabytes — it works both ways.

Use the Petabyte to Bit Converter — free and instant in your browser.

Where this conversion is used

Bits are the base unit of digital information and networking throughput, while petabytes describe data-centre and cloud-storage scale. Converting petabytes to bits is useful when reasoning about transfer times over bit-rate links, estimating raw information content, or checking capacity figures in low-level storage and telecom calculations. The scale is enormous: a single petabyte of 8e15 bits transferred over a 100 Gbit/s link would take roughly 80,000 seconds — about 22 hours — of continuous throughput, which shows why moving petabyte-scale datasets is a serious logistics problem. Keeping the exact factor of eight bits per byte in mind prevents the common mistake of confusing bits (used for network speeds) with bytes (used for storage), an eight-fold error the converter below eliminates by applying the precise relationship every time.

FAQ

How many bits are in a petabyte?

One petabyte equals 8,000,000,000,000,000 bits (8e15). Multiply petabytes by 8e15, so 10 PB = 8e16 bits.

What is the formula to convert petabytes to bits?

bit = PB × 8e15. For example, 5 PB = 4e16 bits.

How do I convert bits back to petabytes?

Divide the bit value by 8e15, or multiply by 1.25e-16. So 8e16 bits = 10 PB.

Is this decimal or binary?

This uses the decimal (SI) convention where 1 PB = 10^15 bytes. Binary petabytes (pebibytes, 2^50 bytes) differ slightly.

Related converters

• Bit to Petabyte Converter
• Petabyte to Byte Converter
• Petabyte to Gigabyte Converter
• Petabyte to Megabyte Converter

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