My internet plan says 'Unlimited uploads up to 5000 MB per day.' How many GB is that?

5000 MB ÷ 1024 ≈ 4.88 GB per day. Close to 5 GB. (Note: providers sometimes use 1000 MB = 1 GB for marketing.)

I need to download a 3 GB file at 50 MB/s. How long will it take?

3 GB = 3,072 MB. At 50 MB/s: 3,072 ÷ 50 ≈ 61 seconds (about 1 minute). Real-world speeds vary with network conditions.

Is GB always binary (1024 MB)?

No. Manufacturers use decimal (1000 MB = 1 GB). Your OS uses binary (1024 MB = 1 GB, or more accurately, 1 GiB). Clarify with context.

My device shows 50 GB used but I only remember storing 40 GB. Where's the rest?

Operating system files, caches, temporary files, and backups add up. Also: manufacturers use decimal (1000 MB), but your OS uses binary (1024 MB), so the 50 GB advertised ≈ 47 GiB available.

Gigabytes (GB) to Megabytes (MB) Converter

Enter a value to instantly convert between data storage units.

From

Precision4 dp

1 Gigabyte = 1024 Megabyte

Key Formulas

Megabyte → Gigabyte

GB = MB × 0.000976563

Gigabyte → Megabyte

MB = GB × 1024

Gigabyte → Terabyte

TB = GB × 0.000976563

Terabyte → Gigabyte

GB = TB × 1024

Formula

MB = GB × 1024

When you have storage sizes in gigabytes but need to compare them against download speeds (quoted in MB/s), upload quotas (in MB), or old device specs (which used MB), you need to convert to megabytes. This helps you estimate transfer times and understand available capacity.

Source: IEC 60027-2:2000 (Letter symbols for units)

Last reviewed: 2026-06-11 · see our methodology

Frequently Asked Questions

Real-World Examples

One gigabyte. By definition, 1 GB = 1024 MB (binary units used by operating systems).

1 GB = 1024 MB

Large backup or archive. A 5 GB backup is 5,120 MB—useful to know for upload limits.

5 GB = 5120 MB

Video file. A 2 GB movie file contains 2,048 MB of data.

2 GB = 2048 MB

Medium file. A 512 MB operating system file is 0.5 GB (common for bootable ISOs).

0.5 GB = 512 MB

mb to gb gb to tb tb to gb kb to mb mb to kb

Gigabytes (GB) to Megabytes (MB) Converter

Key Formulas

Formula

Frequently Asked Questions

Real-World Examples

Related Converters

Further Reading