Data Storage & Transfer Rate Converter

Digital storage is measured in bytes (B), grouped into kilobytes, megabytes, gigabytes, and terabytes. A byte is 8 bits — the smallest unit most file systems report. When you convert bytes to gb or run a byte to gigabyte converter, you are scaling by powers of 1,000 (SI decimal) or 1,024 (IEC binary), depending on which label the tool or OS uses.

This calculator handles both conventions: decimal KB/MB/GB/TB (1 KB = 1,000 bytes) and binary KiB/MiB/GiB/TiB (1 KiB = 1,024 bytes). Pick the units that match your context — hard-drive marketing often uses decimal; Windows/macOS file sizes often show binary mebibytes as "MB."

The most common storage step-up is kilobyte to megabyte. Under SI decimal rules: 1 MB = 1,000 KB and 1 KB = 1,000 bytes. So 5,000 KB = 5 MB. Under IEC binary: 1 MiB = 1,024 KiB.

Use this page as a kilobyte to megabyte converter — select Kilobyte (KB) as From, Megabyte (MB) as To, enter your value. The same flow covers convert from kilobyte to megabyte, convert kb to megabytes, and conversion of kilobytes to megabytes for any file size or bandwidth budget.

Quick reference: 1,024 KB ≈ 1.024 MB (decimal) or exactly 1 MiB (binary). A 500 KB thumbnail = 0.5 MB decimal.

Raw byte counts appear in memory profilers and API payloads. To byte to kb: divide by 1,000 (SI) or 1,024 (KiB). To byte to mb or bytes to megabytes: divide by 1,000,000 (decimal MB) or 1,048,576 (MiB).

Examples:

• 1,048,576 bytes = 1 MiB = ~1.049 MB (decimal)
• 10,000,000 bytes = 10 MB (decimal)
• 1 byte = 8 bits — select Bit ↔ Byte for bit-level math

A general megabyte converter or converter mb accepts input in bytes, KB, or MB and outputs any target unit — useful when a log reports bytes but your spreadsheet uses megabytes.

Megabyte to gigabyte scales by 1,000 under SI: 1 GB = 1,000 MB. So 2,500 MB = 2.5 GB. A megabytes to gigabytes converter saves manual division when estimating how many photos fit on a 64 GB phone.

Conversion megabytes to gigabytes in binary: 1 GiB = 1,024 MiB. A 931 GiB drive is often sold as "1 TB" decimal — the mismatch confuses buyers until they convert both ways.

Reverse: convert gigabytes to megabytes multiplies by 1,000 (or 1,024 for GiB → MiB). 3.2 GB = 3,200 MB decimal.

Large backups and cloud quotas are quoted in gigabytes. To bytes to gb (decimal): divide bytes by 1,000,000,000. One gibibyte (GiB) = 1,073,741,824 bytes. The byte to gigabyte converter above handles both — enter bytes, select Gigabyte or Gibibyte as output.

Jumping two steps: convert kilobytes to gigabytes or use a kilobytes to gigabytes converter. SI path: KB ÷ 1,000,000 = GB. Example: 5,000,000 KB = 5 GB. Chaining kb to mb to gb (÷ 1,000 twice) gives the same result as converting KB directly to GB in one step here.

Enterprise storage and cloud archives use terabytes. Convert gb to tb (decimal): divide GB by 1,000 — 1 TB = 1,000 GB. To convert gigabytes to terabytes: 4,500 GB = 4.5 TB.

Reverse: convert terabytes to gigabytes multiplies by 1,000. Binary tebibytes: 1 TiB = 1,024 GiB. NAS boxes and OS installers mix labels — always check whether the spec uses TB (10¹² bytes) or TiB (2⁴⁰ bytes).

Storage size (bytes) differs from transfer speed (bits per second). ISPs advertise gigabit per second links as Gbps or gigabit connections — a 1 Gbps line moves 1 billion bits each second, not 1 gigabyte.

Because 1 byte = 8 bits, divide bit rate by 8 for byte rate: 1 Gbps = 125 MB/s theoretical max. 1 gigabit to mbps in the same tier: 1 Gbps = 1,000 Mbps (decimal). Select Gigabits per Second → Megabits per Second in the rate units group to verify.

Download time estimate: file size in megabytes × 8 ÷ Mbps = seconds (ideal case, no overhead). A 800 MB file on 100 Mbps ≈ 64 seconds before TCP and server limits.

Hard-drive labels (1 TB = 1,000,000,000,000 bytes) follow SI. RAM and many OS APIs use powers of 1,024. The same numeric gap explains why a "1 TB" SSD shows ~931 GB in some file managers — they are counting GiB while the box counted TB.

When comparing kilo bytes to mb spelling variants or formal SI symbols, remember: uppercase B = byte, lowercase b = bit. Mbps is megabits; MB/s is megabytes. Mixing them doubles or halves your answer by a factor of eight.

All conversions run locally in your browser — no file sizes or network plans are uploaded.