Convert MB to GB
1 MB = 0.001 GB · 1 GB = 1000 MB · Exact by definition
1 MB = 0.001 GB
The same value in other units
- bit
- 8000000 b
- byte
- 1000000 B
- kilobyte
- 1000 kB
- terabyte
- 1e-6 TB
- kibibyte
- 976.563 KiB
- mebibyte
- 0.953674 MiB
- gibibyte
- 0.000931323 GiB
- tebibyte
- 9.09495e-7 TiB
Settings
Digits kept in the answer. Automatic keeps six, which hides floating-point noise without losing anything real.
Convert a whole list
Paste one conversion per line, written the way you would say it: "5 km to mi". Handy for a column copied out of a spreadsheet.
Data size
MB to GB: conversion table
| megabyte | gigabyte |
|---|---|
| 1 MB | 0.001 GB |
| 2 MB | 0.002 GB |
| 3 MB | 0.003 GB |
| 5 MB | 0.005 GB |
| 10 MB | 0.01 GB |
| 20 MB | 0.02 GB |
| 25 MB | 0.025 GB |
| 50 MB | 0.05 GB |
| 100 MB | 0.1 GB |
| 250 MB | 0.25 GB |
| 500 MB | 0.5 GB |
| 1000 MB | 1 GB |
| gigabyte | megabyte |
|---|---|
| 1 GB | 1000 MB |
| 2 GB | 2000 MB |
| 3 GB | 3000 MB |
| 5 GB | 5000 MB |
| 10 GB | 10000 MB |
| 20 GB | 20000 MB |
| 25 GB | 25000 MB |
| 50 GB | 50000 MB |
| 100 GB | 100000 MB |
| 250 GB | 250000 MB |
| 500 GB | 500000 MB |
| 1000 GB | 1000000 MB |
How the conversion works
GB = MB × 0.001
Both units are defined exactly, so the precision of the MB to GB result depends only on the number of decimal places you choose.
METHOD AND SOURCES
Where the conversion factors come from
Results are calculated from the unit definitions stored in the converter, not copied from a lookup table. For exact units, every value in the table follows from the same factor shown in the formula above.
- IEC 80000-13:2025
The standard defining information units and binary prefixes.
- NIST — Prefixes for binary multiples
A public reference for the relationship between kB/MB and KiB/MiB.
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