1 MB = 1,000 KB
Megabytes (MB) to Kilobytes (KB) Converter
The Megabytes (MB) to Kilobytes (KB) Converter turns your Megabyte (MB) value into Kilobytes (KB). Type your storage value below — 1 MB = 1,000 KB, calculated across both decimal (SI) and binary (IEC) standards. This free megabyte to kilobyte calculator doubles as a digital storage converter, file size converter, and data capacity calculator for accurate unit conversion. Also see: Gigabytes to Petabytes.
Megabyte (MB)
A megabyte is 1,000 kilobytes or 1,000,000 bytes using the SI decimal standard.
View the megabyte data unit pageKilobyte (KB)
A kilobyte is 1,000 bytes using the SI decimal standard. Commonly used for small file sizes.
View the kilobyte data unit pageHow to Convert Megabytes to Kilobytes
To convert megabytes to kilobytes, multiply by 1,000 (using SI decimal). Both units measure storage capacity—the difference is scale.
MB: A megabyte is 1,000 kilobytes or 1,000,000 bytes using the SI decimal standard.
KB: A kilobyte is 1,000 bytes using the SI decimal standard. Commonly used for small file sizes. Related: Megabytes to Exabytes.
1 MB = 1,000 KB (using SI decimal standard) — which means there are 1,000kilobytes in every megabyte.
MB to KB conversion rate: 1 megabyte equals 1,000kilobytes — the standard megabyte to kilobyte data storage conversion used by this calculator.
Quick Facts: MB to KB Storage Conversion
- Conversion factor: 1 MB = 1,000 KB (SI decimal)
- Reverse factor: 1 KB = 0.001 MB
- Source unit type: SI decimal storage unit
- Target unit type: SI decimal storage unit
- Binary (IEC) factor: 1 MB = 1,024 KB
- Category: data storage converter, digital capacity calculator
Steps to Convert Megabyte to Kilobyte
- Enter your megabyte value (MB) into the megabyte to kilobyte converter above.
- The equivalent kilobytes (KB) value updates instantly using the MB to KB conversion factor.
- Toggle between the SI decimal (÷1000) and binary IEC (÷1024) standards for Windows-style storage capacity results.
- Use the swap control to reverse the calculation and convert kilobytes back into megabytes.
MB to KB Conversion Formula
Here's the exact MB to KB formula in copy-paste-ready form — multiply by 1,000 to go from megabytes to kilobytes, or by 0.001 to reverse it — followed by a quick-reference chart of the same conversion.
// Convert MB to KB
KB = MB × 1,000
// Reverse: Convert KB to MB
MB = KB × 0.001
Megabyte to Kilobyte Conversion Examples
100 MB = 100,000 KB
256 MB = 256,000 KB
500 MB = 500,000 KB
1,000 MB = 1,000,000 KB
2,048 MB = 2,048,000 KB
Binary Standard (Base 1024)
Using binary calculation: 1 MB = 1,024 KB
100 MB = 102,400 KB
1,000 MB = 1,024,000 KB
1,024 MB = 1,048,576 KB
What Is a Megabyte (MB)? Definition and Uses
A megabyte is 1,000 kilobytes or 1,000,000 bytes using the SI decimal standard.
The megabyte is a SI decimal unit of digital information storage. It uses base 1,000 following the SI (International System of Units) standard.
Common uses: MP3 files, high-resolution images, short video clips, software installers See also: Yobibits to Kilobits.
1 MB = 8 × 10⁶ bits = 1 × 10⁶ bytes.
The megabyte can be abbreviated as MB; for example, 1 megabyte can be written as 1 MB.
Megabyte Storage Unit at a Glance
| Unit type | SI decimal |
|---|---|
| Base / standard | Base 1,000 — SI (International System of Units) |
| Symbol | MB |
| Common uses | MP3 files, high-resolution images, short video clips, software installers |
What Is a Kilobyte (KB)? Definition and Uses
A kilobyte is 1,000 bytes using the SI decimal standard. Commonly used for small file sizes.
The kilobyte is a SI decimal unit of digital information storage. It uses base 1,000 following the SI (International System of Units) standard.
Common uses: Text documents, small images, email attachments, configuration files
1 KB = 8,000 bits = 1,000 bytes.
The kilobyte can be abbreviated as KB; for example, 1 kilobyte can be written as 1 KB.
Kilobyte Storage Unit at a Glance
| Unit type | SI decimal |
|---|---|
| Base / standard | Base 1,000 — SI (International System of Units) |
| Symbol | KB |
| Common uses | Text documents, small images, email attachments, configuration files |
Megabyte to Kilobyte Conversion Table
The table below shows 100 megabyte measurements converted to kilobytes — scroll within the table to see the full range.
| Megabytes | Kilobytes | Kilobytes (Binary) |
|---|---|---|
| 1 MB | 1,000 KB | 1,024 KB |
| 13 MB | 13,000 KB | 13,312 KB |
| 26 MB | 26,000 KB | 26,624 KB |
| 39 MB | 39,000 KB | 39,936 KB |
| 52 MB | 52,000 KB | 53,248 KB |
| 65 MB | 65,000 KB | 66,560 KB |
| 78 MB | 78,000 KB | 79,872 KB |
| 91 MB | 91,000 KB | 93,184 KB |
| 104 MB | 104,000 KB | 106,496 KB |
| 117 MB | 117,000 KB | 119,808 KB |
| 130 MB | 130,000 KB | 133,120 KB |
| 143 MB | 143,000 KB | 146,432 KB |
| 156 MB | 156,000 KB | 159,744 KB |
| 169 MB | 169,000 KB | 173,056 KB |
| 182 MB | 182,000 KB | 186,368 KB |
| 195 MB | 195,000 KB | 199,680 KB |
| 208 MB | 208,000 KB | 212,992 KB |
| 221 MB | 221,000 KB | 226,304 KB |
| 234 MB | 234,000 KB | 239,616 KB |
| 247 MB | 247,000 KB | 252,928 KB |
| 260 MB | 260,000 KB | 266,240 KB |
| 273 MB | 273,000 KB | 279,552 KB |
| 286 MB | 286,000 KB | 292,864 KB |
| 299 MB | 299,000 KB | 306,176 KB |
| 312 MB | 312,000 KB | 319,488 KB |
| 325 MB | 325,000 KB | 332,800 KB |
| 338 MB | 338,000 KB | 346,112 KB |
| 351 MB | 351,000 KB | 359,424 KB |
| 364 MB | 364,000 KB | 372,736 KB |
| 377 MB | 377,000 KB | 386,048 KB |
| 390 MB | 390,000 KB | 399,360 KB |
| 403 MB | 403,000 KB | 412,672 KB |
| 416 MB | 416,000 KB | 425,984 KB |
| 429 MB | 429,000 KB | 439,296 KB |
| 442 MB | 442,000 KB | 452,608 KB |
| 455 MB | 455,000 KB | 465,920 KB |
| 468 MB | 468,000 KB | 479,232 KB |
| 481 MB | 481,000 KB | 492,544 KB |
| 494 MB | 494,000 KB | 505,856 KB |
| 507 MB | 507,000 KB | 519,168 KB |
| 520 MB | 520,000 KB | 532,480 KB |
| 533 MB | 533,000 KB | 545,792 KB |
| 546 MB | 546,000 KB | 559,104 KB |
| 559 MB | 559,000 KB | 572,416 KB |
| 572 MB | 572,000 KB | 585,728 KB |
| 585 MB | 585,000 KB | 599,040 KB |
| 598 MB | 598,000 KB | 612,352 KB |
| 611 MB | 611,000 KB | 625,664 KB |
| 624 MB | 624,000 KB | 638,976 KB |
| 637 MB | 637,000 KB | 652,288 KB |
| 650 MB | 650,000 KB | 665,600 KB |
| 663 MB | 663,000 KB | 678,912 KB |
| 676 MB | 676,000 KB | 692,224 KB |
| 689 MB | 689,000 KB | 705,536 KB |
| 702 MB | 702,000 KB | 718,848 KB |
| 715 MB | 715,000 KB | 732,160 KB |
| 728 MB | 728,000 KB | 745,472 KB |
| 741 MB | 741,000 KB | 758,784 KB |
| 754 MB | 754,000 KB | 772,096 KB |
| 767 MB | 767,000 KB | 785,408 KB |
| 780 MB | 780,000 KB | 798,720 KB |
| 793 MB | 793,000 KB | 812,032 KB |
| 806 MB | 806,000 KB | 825,344 KB |
| 819 MB | 819,000 KB | 838,656 KB |
| 832 MB | 832,000 KB | 851,968 KB |
| 845 MB | 845,000 KB | 865,280 KB |
| 858 MB | 858,000 KB | 878,592 KB |
| 871 MB | 871,000 KB | 891,904 KB |
| 884 MB | 884,000 KB | 905,216 KB |
| 897 MB | 897,000 KB | 918,528 KB |
| 910 MB | 910,000 KB | 931,840 KB |
| 923 MB | 923,000 KB | 945,152 KB |
| 936 MB | 936,000 KB | 958,464 KB |
| 949 MB | 949,000 KB | 971,776 KB |
| 962 MB | 962,000 KB | 985,088 KB |
| 975 MB | 975,000 KB | 998,400 KB |
| 988 MB | 988,000 KB | 1,011,712 KB |
| 1,001 MB | 1,001,000 KB | 1,025,024 KB |
| 1,014 MB | 1,014,000 KB | 1,038,336 KB |
| 1,027 MB | 1,027,000 KB | 1,051,648 KB |
| 1,040 MB | 1,040,000 KB | 1,064,960 KB |
| 1,053 MB | 1,053,000 KB | 1,078,272 KB |
| 1,066 MB | 1,066,000 KB | 1,091,584 KB |
| 1,079 MB | 1,079,000 KB | 1,104,896 KB |
| 1,092 MB | 1,092,000 KB | 1,118,208 KB |
| 1,105 MB | 1,105,000 KB | 1,131,520 KB |
| 1,118 MB | 1,118,000 KB | 1,144,832 KB |
| 1,131 MB | 1,131,000 KB | 1,158,144 KB |
| 1,144 MB | 1,144,000 KB | 1,171,456 KB |
| 1,157 MB | 1,157,000 KB | 1,184,768 KB |
| 1,170 MB | 1,170,000 KB | 1,198,080 KB |
| 1,183 MB | 1,183,000 KB | 1,211,392 KB |
| 1,196 MB | 1,196,000 KB | 1,224,704 KB |
| 1,209 MB | 1,209,000 KB | 1,238,016 KB |
| 1,222 MB | 1,222,000 KB | 1,251,328 KB |
| 1,235 MB | 1,235,000 KB | 1,264,640 KB |
| 1,248 MB | 1,248,000 KB | 1,277,952 KB |
| 1,261 MB | 1,261,000 KB | 1,291,264 KB |
| 1,274 MB | 1,274,000 KB | 1,304,576 KB |
| 1,287 MB | 1,287,000 KB | 1,317,888 KB |
SI Decimal vs Binary: Why Two Different Standards?
When converting megabytes to kilobytes, different tools may give slightly different results. This is because there are two competing standards for measuring digital storage:
| Standard | Base | 1 KB equals | Used By |
|---|---|---|---|
| SI Decimal | 1000 | 1,000 bytes | Hard drive manufacturers, macOS, network speeds |
| Binary (IEC) | 1024 | 1,024 bytes | Windows, Linux (partially), RAM specifications |
Note: Our calculator defaults to SI decimal (base 1000) to match the box label. To match Windows, toggle the standard above the converter.
Want to skip the ambiguity entirely? Mebibyte (MiB) and Kibibyte (KiB) are the IEC binary-only siblings of megabyte and kilobyte — always base 1,024, no dual-standard guessing. See the MiB to KiB converter.
FAQs: Megabyte to Kilobyte Conversion
How many kilobytes are in 1 megabyte?
1 Megabyte (MB) equals 1,000 Kilobytes using the SI decimal standard, or 1,024 KB using the binary (IEC) standard.
How do I convert megabytes to kilobytes?
Multiply the megabyte value by 1,000 to get kilobytes. For example, 10 MB = 10,000 KB.
Is a megabyte bigger than a kilobyte?
Yes. 1 MB = 1,000 KB, so the megabyte is the larger data storage unit.
What is Megabyte (MB) commonly used for?
MP3 files, high-resolution images, short video clips, software installers.