---
title: "Megabits to Terabytes — Mb to TB converter"
description: "1 megabit = 1.25 × 10^-7 terabytes. Convert megabits to terabytes with a full conversion table, the exact formula, and a calculator for any value."
url: https://atoneplace.net/convert/megabits-to-tb/
site: "At One Place"
---

# Megabits to terabytes

**1 megabit in terabytes: 1 Mb = 1.25 × 10^-7 TB**

TB = Mb × 1.25 × 10^-7

To convert megabits to terabytes, multiply by 1.25 × 10^-7. The table below gives the values people look up most often, and the converter works for any number.

## Megabits to terabytes table

*Common megabit values converted to terabytes.*

| Megabits | Terabytes |
| --- | --- |
| 1 Mb | 1.25 × 10^-7 |
| 2 Mb | 2.5 × 10^-7 |
| 3 Mb | 3.75 × 10^-7 |
| 4 Mb | 5 × 10^-7 |
| 5 Mb | 6.25 × 10^-7 |
| 10 Mb | 0.00000125 |
| 15 Mb | 0.000001875 |
| 20 Mb | 0.0000025 |
| 25 Mb | 0.000003125 |
| 30 Mb | 0.00000375 |
| 40 Mb | 0.000005 |
| 50 Mb | 0.00000625 |
| 75 Mb | 0.000009375 |
| 100 Mb | 0.0000125 |
| 250 Mb | 0.00003125 |
| 500 Mb | 0.0000625 |
| 1,000 Mb | 0.000125 |

## How the conversion works

The relationship is TB = Mb × 1.25 × 10^-7. Both units measure data, so the conversion is a fixed factor that never changes.

## Common questions

### How many terabytes are in one megabit?

One megabit equals 1.25 × 10^-7 terabytes. TB = Mb × 1.25 × 10^-7.

### How do you convert megabits to terabytes?

Use TB = Mb × 1.25 × 10^-7. So 10 Mb is 0.00000125 TB.

### How many megabits are in one terabyte?

One terabyte equals 8,000,000 megabits, which is the reverse of the conversion above.

## Related pages

- [Terabytes to Megabits](https://atoneplace.net/convert/tb-to-megabits/)
- [Megabits to Bytes](https://atoneplace.net/convert/megabits-to-bytes/)
- [Megabits to Kilobytes](https://atoneplace.net/convert/megabits-to-kb/)
- [Megabits to Megabytes](https://atoneplace.net/convert/megabits-to-mb/)
- [Megabits to Gigabytes](https://atoneplace.net/convert/megabits-to-gb/)
- [Megabits to Bits](https://atoneplace.net/convert/megabits-to-bits/)

## Sources

- Guide for the Use of the International System of Units (SP 811) — NIST (https://www.nist.gov/pml/special-publication-811) [Public domain (US Government)]
- The International System of Units (SI Brochure) — Bureau International des Poids et Mesures (https://www.bipm.org/en/publications/si-brochure)
- Calculated on this page — At One Place (/about/)