Megabits to gigabits

Type a value in megabits to see it in gigabits straight away, or type in the second box to convert back.

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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.

How to use it

  1. Type the value in the megabits box.
  2. Read the result in gigabits as you type, and pick the precision you need.
  3. Swap the direction to convert back, or copy the result.

How it is calculated

Gbit = Mbit × 0.001

Multiply the value in megabits by 0.001 to get gigabits.

Example

To convert 25 Mbit to gigabits: 25 × 0.001 = 0.025 Gbit.

Conversion table

Megabits (Mbit)Gigabits (Gbit)
10.001
20.002
30.003
50.005
100.01
200.02
250.025
500.05
1000.1
2500.25
5000.5
1,0001

About the units

Megabit
A decimal unit equal to exactly 1,000,000 bits (10^6 bits), which is 125,000 bytes. Common in internet speeds.
Gigabit
A decimal unit equal to exactly 10^9 bits, which is 125,000,000 bytes.

Limits and caveats

  • Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
  • Both unit factors are exact by their official definitions.

Questions about this tool

How many gigabits are in one megabit?

1 Mbit = 0.001 Gbit exactly.

How do I convert megabits to gigabits?

Use Gbit = Mbit × 0.001. For example, 25 Mbit = 0.025 Gbit.

How many megabits are in one gigabit?

1 Gbit = 1,000 Mbit.

Why does a 1 TB drive show about 931 GB on my computer?

Drive makers count 1 TB as 10^12 bytes, while Windows divides by 2^30 and labels the result GB even though it is really GiB. So 10^12 ÷ 1,073,741,824 gives about 931.32, and no space is missing.

What is the difference between a kilobyte and a kibibyte?

A kilobyte (kB) is a decimal unit of 1000 bytes and a kibibyte (KiB) is a binary unit of 1024 bytes. The same split applies to mega and mebi, giga and gibi, and the gap grows at each step.