How do I convert gigabytes back to megabytes?

Use the reverse converter: 1 gigabyte equals 1000 MB.

Is this converter accurate?

Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.

Megabytes to Gigabytes Converter (MB to GB)

Formula

To convert megabytes to gigabytes, multiply the value by 0.001.

GB = MB × 0.001

Example calculation

Convert 10 MB to GB:

10 MB × 0.001 = 0.01 GB

Conversion table

megabytes → gigabytes
MB	GB
1	0.0010
2	0.0020
3	0.0030
4	0.0040
5	0.0050
6	0.0060
7	0.0070
8	0.0080
9	0.0090
10	0.0100
15	0.0150
20	0.0200
25	0.0250
30	0.0300
35	0.0350
40	0.0400
45	0.0450
50	0.0500
55	0.0550
60	0.0600
65	0.0650
70	0.0700
75	0.0750
80	0.0800
85	0.0850
90	0.0900
95	0.0950
100	0.1000
200	0.2000
500	0.5000
1000	1.0000

Decimal vs binary: KB, MB and GB use powers of 1,000 (SI), while KiB, MiB and GiB use powers of 1,024. Storage makers use decimal units; many operating systems and memory sizes use binary ones, which is why a "500 GB" drive shows less space.

About the units

Megabyte (MB): 1,000,000 bytes in the decimal system, used by storage makers and file sizes.
Gigabyte (GB): 1,000,000,000 bytes in the decimal system, used for drive capacity and data plans.

Frequently asked questions

How do I convert megabytes to gigabytes?: To convert megabytes to gigabytes, multiply the value by 0.001.
How many gigabytes are in 1 megabyte?: 1 megabyte equals 0.001 GB.
How many gigabytes are in 10 megabytes?: 10 MB equals 0.01 GB.
How do I convert gigabytes back to megabytes?: Use the reverse converter: 1 gigabyte equals 1000 MB.
Is this converter accurate?: Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.