MB digital storage unit.
MB to Megabits Converter — MB to Mb
Convert MB (MB) to Megabit (Mb) using the exact conversion factor (1 mb = 8 megabit). See the formula, worked examples, conversion table, unit comparison, history, and common uses.
MB to Megabits converter
Converter
Digital Storage Converter
Convert bits, bytes, decimal storage, binary storage, nibbles, and word sizes.
Context values
Some unit families need one extra value for a physically accurate result.
Megabit digital storage unit.
Result = input x 8e+6 / 1e+6.
Digital storage uses bits as the base unit.
Reserved above the conversion cards and below the converter.
About Converting MB to Megabits
MB and Megabit are everyday digital-storage units, used for everything from file sizes and app downloads to storage device capacity and mobile data allowances. MB is typically associated with used worldwide as a standard digital storage and file-size unit, while Megabit is typically associated with used worldwide for network and internet speed ratings.
Formula
megabits = mb × 8
This factor comes from each unit's defined relationship to the category's base unit: 1 mb equals 8000000 base units, and 1 megabit equals 1000000 base units, so dividing one by the other gives the direct mb-to-megabit factor of 8.
Simple example
1 MB × 8 = 8 Mb
1 mb = 8 megabits.
Real-world example
500 MB × 8 = 4,000 Mb
500 mb = 4,000 megabits.
Conversion table
| MB (MB) | Megabit (Mb) |
|---|---|
| 1 MB | 8 Mb |
| 8 MB | 64 Mb |
| 16 MB | 128 Mb |
| 64 MB | 512 Mb |
| 256 MB | 2,048 Mb |
| 1,000 MB | 8,000 Mb |
Reverse conversion: Megabit to MB
8 Mb × 0.125 = 1 MB
8 megabits = 1 mb.
mb = megabits × 0.125
For a page dedicated to this direction, see Megabit to MB.
MB vs. Megabit
| Aspect | MB | Megabit |
|---|---|---|
| Family | Decimal (SI-prefixed) digital storage unit | Decimal (SI-prefixed) digital unit |
| Typical use | File and document size reporting | Internet connection speed advertising (Mbps) |
| Where it's used | Used worldwide as a standard digital storage and file-size unit | Used worldwide for network and internet speed ratings |
Understanding the MB
MB (MB) measures digital storage. In the decimal convention used by storage manufacturers and most software, 1 megabyte equals 1,000 kilobytes (10⁶ bytes). It is classified as a Decimal (SI-prefixed) digital storage unit.
Where it's used: Used worldwide as a standard digital storage and file-size unit
Decimal MB vs. binary MiB. Storage manufacturers typically use decimal megabytes (10⁶ bytes), while some operating systems report binary mebibytes (2²⁰ bytes) but label them 'MB' — this is the common reason a drive's reported capacity looks smaller than advertised.
Uses of the MB today
- File and document size reporting
- Storage device capacity labeling
- Network transfer size measurement
History of the MB
Byte-based storage units grew out of early computing, where memory was naturally organized in powers of two, leading to the common but technically non-standard practice of using 'megabyte' to mean 2²⁰ bytes (1,048,576) in some software contexts.
In 1998, the International Electrotechnical Commission (IEC) introduced binary prefixes — kibi-, mebi-, gibi- — specifically so 'megabyte' could be reserved for the decimal (10⁶) meaning and 'mebibyte' (MiB) used for the binary (2²⁰) meaning, resolving the ambiguity, though usage still varies by industry.
Historical origin. MB was not the invention of a single named person; it developed through the process described above.
Understanding the Megabit
Megabit (Mb) measures digital storage/transfer. A megabit is 1,000,000 bits (125,000 bytes) under the decimal convention used for network speeds. It is classified as a Decimal (SI-prefixed) digital unit.
Where it's used: Used worldwide for network and internet speed ratings
Megabits vs. megabytes. Internet speeds are quoted in megabits per second (Mbps), while file sizes are quoted in megabytes (MB) — 8 megabits equal 1 megabyte, so a '100 Mbps' connection downloads at up to about 12.5 MB per second.
Uses of the Megabit today
- Internet connection speed advertising (Mbps)
- Network bandwidth measurement
History of the Megabit
Network speeds have conventionally been quoted in bits rather than bytes since early telecommunications measured signal rate in bits per second; this convention carried into modern internet service marketing, which is why connection speeds (Mbps) and file sizes (MB) use different base units, a frequent source of consumer confusion.
Historical origin. Megabit was not the invention of a single named person; it developed through the process described above.
MB — sources
- IEC 80000-13 — International standard defining binary prefixes (kibi-, mebi-, gibi-) distinct from decimal SI prefixes.
Megabit — sources
- IEC 80000-13 — Defines bit-based units distinct from byte-based units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many megabits are in 1 mb?
1 mb equals 8 megabits, using the exact defined conversion factor rather than an estimate.
How do I convert mb to megabit?
Multiply the mb value by 8. The converter above does this instantly to whatever precision you set.
How do I convert megabit back to mb?
Use the reverse factor: 1 megabit equals 0.125 mb. You can also use the swap control in the converter above to flip the direction instantly.
What is a mb?
MB (MB) measures digital storage. In the decimal convention used by storage manufacturers and most software, 1 megabyte equals 1,000 kilobytes (10⁶ bytes). It is classified as a Decimal (SI-prefixed) digital storage unit.
What is a megabit?
Megabit (Mb) measures digital storage/transfer. A megabit is 1,000,000 bits (125,000 bytes) under the decimal convention used for network speeds. It is classified as a Decimal (SI-prefixed) digital unit.
Is the mb to megabit conversion exact?
Yes. Both mb and megabit are defined by fixed standards rather than physical artifacts, so the factor of 8 used above is exact to as many digits as you choose to display.
What is the difference between decimal mb vs. binary mib?
Storage manufacturers typically use decimal megabytes (10⁶ bytes), while some operating systems report binary mebibytes (2²⁰ bytes) but label them 'MB' — this is the common reason a drive's reported capacity looks smaller than advertised.
Where is the mb still used today?
Used worldwide as a standard digital storage and file-size unit