convert

GB to MB Converter

Convert gigabytes to megabytes: 1 GB = 1024 MB (binary) or 1000 MB (decimal). Instant conversion for phone storage and drives, with binary vs decimal explained.

Free online · Instant results

SI (disk vendors): 1 GB = 10⁹ B · IEC (OS display): 1 GiB = 1024³ B ≈ 1.074 GB · 1 B = 8 bits

Value

From

1,000.000000MB (10⁶)

1 GB (10⁹) = 1,000.000000 MB (10⁶) · 1 MB (10⁶) = 0.001000 GB (10⁹)

All conversions

Common scenarios

Conversion steps

1Unit relation: 1 GB (10⁹) = 1,000.000000 MB (10⁶)
2Substitute: 1.000000 × 1,000.000000
3Result: 1.000000 GB (10⁹) = 1,000.000000 MB (10⁶)

Order-of-magnitude scale

A text message

A photo

An HD movie

128 GB phone

A 2 TB disk

Small data center

For scale: An HD movie ≈ 4.00 × current

Quick reference

1 KB	1000 B (SI)
1 KiB	1024 B (IEC)
1 GB	≈0.931 GiB
1 TB disk	shows ≈931 GiB
1 MB	8 Mbit
1 GiB	≈1.074 GB

Why disks look "smaller": vendors label 1 GB = 10⁹ B while the OS shows 1 GiB = 1024³ B, so a 1 TB disk appears as ≈931 GiB. This is normal, not a defect.

Frequently Asked Questions

How many MB is 1 GB?▼

1 GB = 1024 MB in binary (used by operating systems) or 1000 MB in decimal (used by drive manufacturers).

How do I use the Data Storage Converter?▼

Open the page and fill in the input fields — results update automatically. B, KB, MB, GB, TB, PB.

Are the results accurate?▼

Yes. Standard formulas and conversion factors are used and verified.

Is it free? Do I need to sign up?▼

Completely free. No registration, login or download required.

Does it work on mobile?▼

Yes. The responsive design works on phones, tablets and desktops.

💡

This is a dedicated variant of the Data Storage Converter, pre-configured for this scenario with tailored FAQs.