Petabit digital storage unit.
Petabits to Megabits Converter — Pb to Mb
Convert Petabit (Pb) to Megabit (Mb) using the exact conversion factor (1 petabit = 1,000,000,000 megabit). See the formula, worked examples, conversion table, history, and common uses.
Petabits to Megabits converter
Converter
Digital Storage Converter
Convert bits, bytes, decimal storage, binary storage, nibbles, and word sizes.
Context values
Some unit families need one extra value for a physically accurate result.
Megabit digital storage unit.
Result = input x 1e+15 / 1e+6.
Digital storage uses bits as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Petabits to Megabits
Petabit and Megabit are everyday digital-storage units, used for everything from file sizes and app downloads to storage device capacity and mobile data allowances. Specifically: Petabit digital storage unit, and megabit digital storage unit.
Formula
megabits = petabits × 1000000000
This factor comes from each unit's defined relationship to the category's base unit: 1 petabit equals 1e+15 base units, and 1 megabit equals 1000000 base units, so dividing one by the other gives the direct petabit-to-megabit factor of 1000000000.
Simple example
1 Pb × 1000000000 = 1,000,000,000 Mb
1 petabit = 1,000,000,000 megabits.
Real-world example
500 Pb × 1000000000 = 500,000,000,000 Mb
500 petabits = 500,000,000,000 megabits.
Conversion table
| Petabit (Pb) | Megabit (Mb) |
|---|---|
| 1 Pb | 1,000,000,000 Mb |
| 8 Pb | 8,000,000,000 Mb |
| 16 Pb | 16,000,000,000 Mb |
| 64 Pb | 64,000,000,000 Mb |
| 256 Pb | 256,000,000,000 Mb |
| 1,000 Pb | 1e+12 Mb |
Reverse conversion: Megabit to Petabit
1 Mb × 1e-9 = 1e-9 Pb
1 megabit = 1e-9 petabits.
petabits = megabits × 1e-9
For a page dedicated to this direction, see Megabit to Petabit.
Understanding the Petabit (Pb)
Petabit digital storage unit.
Understanding the Megabit
Megabit (Mb) measures digital storage/transfer. A megabit is 1,000,000 bits (125,000 bytes) under the decimal convention used for network speeds. It is classified as a Decimal (SI-prefixed) digital unit.
Where it's used: Used worldwide for network and internet speed ratings
Megabits vs. megabytes. Internet speeds are quoted in megabits per second (Mbps), while file sizes are quoted in megabytes (MB) — 8 megabits equal 1 megabyte, so a '100 Mbps' connection downloads at up to about 12.5 MB per second.
Uses of the Megabit today
- Internet connection speed advertising (Mbps)
- Network bandwidth measurement
History of the Megabit
Network speeds have conventionally been quoted in bits rather than bytes since early telecommunications measured signal rate in bits per second; this convention carried into modern internet service marketing, which is why connection speeds (Mbps) and file sizes (MB) use different base units, a frequent source of consumer confusion.
Historical origin. Megabit was not the invention of a single named person; it developed through the process described above.
Megabit — sources
- IEC 80000-13 — Defines bit-based units distinct from byte-based units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many megabits are in 1 petabit?
1 petabit equals 1,000,000,000 megabits, using the exact defined conversion factor rather than an estimate.
How do I convert petabit to megabit?
Multiply the petabit value by 1000000000. The converter above does this instantly to whatever precision you set.
How do I convert megabit back to petabit?
Use the reverse factor: 1 megabit equals 1e-9 petabits. You can also use the swap control in the converter above to flip the direction instantly.
What is a petabit?
Petabit (Pb) is a unit of digital storage.
What is a megabit?
Megabit (Mb) measures digital storage/transfer. A megabit is 1,000,000 bits (125,000 bytes) under the decimal convention used for network speeds. It is classified as a Decimal (SI-prefixed) digital unit.
Is the petabit to megabit conversion exact?
Yes. Both petabit and megabit are defined by fixed standards rather than physical artifacts, so the factor of 1000000000 used above is exact to as many digits as you choose to display.
What is the difference between megabits vs. megabytes?
Internet speeds are quoted in megabits per second (Mbps), while file sizes are quoted in megabytes (MB) — 8 megabits equal 1 megabyte, so a '100 Mbps' connection downloads at up to about 12.5 MB per second.