How do I convert megabytes back to gigabytes?

Use the reverse converter: 1 megabyte equals 0.001 GB.

Is this converter accurate?

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

Gigabytes to Megabytes Converter (GB to MB)

Formula

To convert gigabytes to megabytes, multiply the value by 1000.

MB = GB × 1000

Example calculation

Convert 10 GB to MB:

10 GB × 1000 = 10000 MB

Conversion table

gigabytes → megabytes
GB	MB
1	1000.0000
2	2000.0000
3	3000.0000
4	4000.0000
5	5000.0000
6	6000.0000
7	7000.0000
8	8000.0000
9	9000.0000
10	10000.0000
15	15000.0000
20	20000.0000
25	25000.0000
30	30000.0000
35	35000.0000
40	40000.0000
45	45000.0000
50	50000.0000
55	55000.0000
60	60000.0000
65	65000.0000
70	70000.0000
75	75000.0000
80	80000.0000
85	85000.0000
90	90000.0000
95	95000.0000
100	100000.0000
200	200000.0000
500	500000.0000
1000	1000000.0000

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

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

Frequently asked questions

How do I convert gigabytes to megabytes?: To convert gigabytes to megabytes, multiply the value by 1000.
How many megabytes are in 1 gigabyte?: 1 gigabyte equals 1000 MB.
How many megabytes are in 10 gigabytes?: 10 GB equals 10000 MB.
How do I convert megabytes back to gigabytes?: Use the reverse converter: 1 megabyte equals 0.001 GB.
Is this converter accurate?: Yes. It uses the exact SI/NIST definitions of each unit and shows up to 6 significant digits.