MB to KB

Instantly convert megabytes to kilobytes (SI base-1000) with a step-by-step visual breakdown.

5 MB = 5,000 KB · KB = MB × 1000

Kilobytes (KB)

5,000 KB

MB5× 1000KB5000

About this calculator

One megabyte equals 1,000 kilobytes under the SI (decimal) standard used by storage manufacturers and network providers. Use this converter to go from MB to KB instantly — handy for file size comparisons, storage planning, and bandwidth calculations.

Common examples

  • 1 MB = 1,000 KB
  • 5 MB = 5,000 KB
  • 10 MB = 10,000 KB
  • 0.5 MB = 500 KB
  • 250 MB = 250,000 KB