GB to MB Converter – How to Convert GB to MB for Windows Partition.
If you are creating a partition while installing Windows, you may notice that the partition size is entered in MB (Megabytes) instead of GB.
For example, if you want to create a 300 GB partition, you cannot simply enter 300 in the Size box. You need to convert 300 GB into MB first.
Part 1: How to Convert GB to MB
❖ When creating a partition during Windows installation, the size is usually entered in MB (Megabytes).
Basic Formula:
GB × 1024 = MB
Example:
300 GB × 1024 = 307200 MB
So, if you want to create a 300 GB partition in Windows Setup, enter:
307200 MB
Some Common Examples
✧ 100 GB → 100 × 1024 = 102400 MB
✧ 200 GB → 200 × 1024 = 204800 MB
✧ 250 GB → 250 × 1024 = 256000 MB
✧ 300 GB → 300 × 1024 = 307200 MB
✧ 500 GB → 500 × 1024 = 512000 MB
✧ 1 TB / 1000 GB → 1000 × 1024 = 1024000 MB
Part 2: GB to MB Conversion Chart
❖ Use the table below to quickly find the MB value you need to enter in the Windows Setup partition Size box.
Partition Size
|
Enter in MB
|
50 GB | 51200 MB |
100 GB | 102400 MB |
150 GB | 153600 MB |
200 GB | 204800 MB |
250 GB | 256000 MB |
300 GB | 307200 MB |
400 GB | 409600 MB |
500 GB | 512000 MB |
600 GB | 614400 MB |
700 GB | 716800 MB |
800 GB | 819200 MB |
900 GB | 921600 MB |
1000 GB (1 TB) | 1024000 MB |
Quick Formula:
MB = GB × 1024
Example: If you need a 350 GB partition, calculate
350 × 1024 = 358400 MB. Enter 358400
in the Windows Setup Size box.
Where Is This Used?
◆ This conversion is especially useful when.
- Installing Windows 11 from a bootable USB
- Creating a new partition
- Dividing an SSD or hard drive
- Installing Windows on a new DOS laptop
- Creating C: and D: partitions during Windows Setup
◆ Important:-
Before deleting, formatting or creating partitions, always check the drive size and existing data carefully.
◆ If the SSD or hard drive already contains important files, do not delete or format a partition unless you are sure about what it contains.
◆ Note: Windows may also create small system and recovery partitions automatically during installation.
Quick Reference
✧ 50 GB = 51200 MB
✧ 100 GB = 102400 MB
✧ 200 GB = 204800 MB
✧ 300 GB = 307200 MB
✧ 400 GB = 409600 MB
✧ 500 GB = 512000 MB
✧ 600 GB = 614400 MB
✧ 700 GB = 716800 MB
✧ 800 GB = 819200 MB
✧ 900 GB = 921600 MB
✧ 1000 GB = 1024000 MB
◆ If you know the GB size of your required partition, simply multiply it by 1024 to get the MB value.
◆ I hope this GB to MB conversion guide helps you create the correct partition size during Windows installation.
◆ For more useful Windows, computer software and mobile repairing tips, keep visiting Shri Telecom.
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