bytestomb.com Open Converter

Bytes to MB Converter

Convert between bytes and megabytes in decimal (MB) or binary (MiB). Accurate, accessible, and built for speed.

  • No sign‑up, no ads, no tracking.
  • Copy results with one click. Keyboard‑friendly.
  • Handles huge numbers (up to 1e24 safely in JS BigInt mode).
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Quick Convert

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Tip: Press Enter to convert. MB = 10^6 bytes. MiB = 2^20 bytes.

Bytes ⇄ MB / MiB Converter

Choose decimal (MB) or binary (MiB). Type in either box—the other updates instantly.

Bytes → Mega*

Mega* → Bytes

*Mega in computing can mean 1,000,000 (MB, decimal) or 1,048,576 (MiB, binary). Pick the scale that matches your use‑case.

How we convert

Decimal (MB)

1 MB = 1,000,000 bytes (106). Common in storage marketing and network throughput.

Binary (MiB)

1 MiB = 1,048,576 bytes (220). Widely used by operating systems and developers.

Precision & Formatting

We calculate with either Number or BigInt math. Toggle digit grouping and copy results instantly.

FAQ

What is the difference between MB and MiB?

MB uses decimal powers (10^6), while MiB uses binary powers (2^20). 1 MiB ≈ 1.048576 MB.

Which should I use?

Use MB for marketing/network specs; use MiB for OS‑level file sizes and developer tooling.

How big can the numbers be?

With BigInt enabled, inputs can be extremely large (up to dozens of digits). Without it, JavaScript safely handles integers up to 9,007,199,254,740,991 (2^53‑1).

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Need a custom converter?

bytestomb.com can be extended for KB/GB/TB, throughput, time‑to‑download, and more. Reach out to discuss your use case.

  • • Zero dependencies
  • • Accessible and keyboard‑friendly
  • • Open for white‑label embeds

Demo only. Replace with your backend/email service.

1 → 1000 Mega* conversions to bytes

Generate a full reference list and visualize it. Choose decimal (MB) or binary (MiB).

Linear chart of Mega* (x) vs Bytes (y) for values 1–1000.

Reference Table

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# Mega* Bytes