How to use this tool
- Pick a category from the tabs above — 14 in total, from Length and Weight to Pressure, Power, and Fuel Economy.
- Choose the unit you're converting from and enter a value.
- Choose the unit you're converting to — the result updates instantly.
- Use the ⇄ button to swap the two units in one click.
Common mistakes to avoid
- For data storage, double-check whether you need the decimal unit (KB, MB, GB — used for network/storage marketing) or the binary one (KiB, MiB, GiB — used by operating systems) — mixing them up is the single most common data-size mistake.
- Temperature conversion is not a simple multiply/divide — always use the dedicated Temperature tab rather than trying to scale a Celsius value by hand.
- Fuel economy has the same issue: L/100km is the reciprocal of km/L and mpg, not a linear scale — use the Fuel Economy tab rather than estimating it by eye.
Why decimal and binary data units differ
A "1 TB" hard drive is defined by manufacturers using the decimal system (1 TB = 1000⁴ bytes), but your operating system often reports capacity using the binary system (1 TiB = 1024⁴ bytes) — which is why a "1 TB" drive shows up as roughly 931 GiB in your file explorer. Neither number is wrong; they're measuring with different definitions of the prefix.
Frequently asked questions
- Which unit categories does this converter support?
- Length, weight, volume, speed, data storage (both decimal — KB/MB/GB — and binary — KiB/MiB/GiB), area, time, energy, pressure, frequency, power, and force, plus temperature and fuel economy as their own categories, since neither is a simple multiply/divide.
- What's the difference between KB and KiB?
- 1 KB (kilobyte) is 1,000 bytes under the decimal (SI) definition; 1 KiB (kibibyte) is 1,024 bytes under the binary definition operating systems traditionally use. Both appear here since either can be "correct" depending on context.
- How accurate are the conversion factors?
- Length, weight, and volume use internationally defined exact or standard conversion factors (e.g. 1 inch = 2.54 cm exactly). Results are shown rounded for readability.
Every conversion runs locally in your browser — nothing is sent anywhere.
Popular conversions
Jump straight to a specific conversion, pre-selected and with a quick-reference table.
How GetByteRush compares
Most free tools for this online work the same way: you upload your file to their server, wait, then download the result — which means your file (and often your email, for a "free" account) sits on someone else's infrastructure. Here's the actual difference:
| Feature | GetByteRush | Typical online tools |
|---|---|---|
| Values sent to a server | Never | Often, for form-submission-based converters |
| Binary (KiB/MiB/GiB) data units included | Yes | Frequently missing or conflated with decimal units |
| Ads-driven redirects | Never | Common on ad-heavy converter sites |
("Typical online tools" reflects publicly documented behavior of common free file-processing sites as of 2026 — always check a specific competitor's own privacy policy and pricing page, since these details change.)