How accurate are conversions?

Factors from official standards. Results to 6 decimal places or scientific notation.

KiB = 1024 bytes (binary). KB = 1000 bytes (decimal).

Unit Converter

Convert technical and specialised units instantly

About Data Transfer Rate

Data transfer rates measure how fast data moves. 1 byte = 8 bits. Network speeds are in bits/s, storage speeds in bytes/s.

Free Online Unit Converter — Technical & Specialised Units

Most unit converters cover the basics — length, weight, and temperature. But what about data transfer rates, astronomical distances, typography units, or pressure measurements? This Unit Converter is built for technical professionals, developers, engineers, students, and anyone who works with specialised units that are not found in standard converters.

Choose from eight categories: Data Transfer Rate, Fuel Efficiency, Astronomical Distances, Typography and Web Units, Pressure, Digital Storage (binary vs decimal), Angle Measurements, and Frequency. Each category has a curated set of units with accurate conversion factors. Conversions happen instantly as you type.

The tool handles inverse units like liters per 100 km (where lower is better), very large numbers like light years, and very small numbers like arc seconds. Results are displayed with smart formatting — scientific notation for extreme values, and up to six decimal places for precision. Copy any value to your clipboard with one click. Swap units instantly with the swap button. Everything runs in your browser.

Supported Unit Categories

Data Transfer Rate

Convert between bps, Kbps, Mbps, Gbps, Tbps and their byte equivalents. Essential for network engineers and ISP comparisons.

Fuel Efficiency

MPG (US/UK), km/L, L/100km, gallons/100mi. Handles inverse units where lower means more efficient.

Astronomical Distances

Kilometers, AU, light years, parsecs, miles, Earth–Moon and Earth–Sun distances. Built for very large numbers.

Typography & Web Units

Pixels, points, em, rem, picas, inches, cm, mm, vw, vh. Indispensable for web designers and developers.

Pressure

Pascals, kPa, MPa, bar, atmospheres, PSI, torr, mmHg. Covers engineering, weather, and medical applications.

Digital Storage

Binary (KiB, MiB, GiB) vs decimal (KB, MB, GB). Explains the size difference between OS and manufacturer numbers.

Frequently Asked Questions

Is this unit converter free?+

Yes, completely free with no account, no limits, and no data collection.

What makes it different from standard converters?+

It covers niche categories like data transfer, astronomy, typography, and binary storage that most converters skip.

How accurate are the conversions?+

Conversion factors are sourced from official standards. Results are displayed to six decimal places or in scientific notation.

Does it handle inverse units?+

Yes. Units like L/100km use inverse conversion where lower values mean greater efficiency.

Can I copy the result?+

Yes. Click the copy icon next to any value to copy it to your clipboard.

What is the difference between KiB and KB?+

KiB (kibibyte) = 1024 bytes (binary). KB (kilobyte) = 1000 bytes (decimal). This distinction matters for digital storage.

Does it send data to a server?+

No. All calculations run entirely in your browser. Your data never leaves your device.

Does it work on mobile?+

Yes. Fully responsive layout that adapts to any screen size.