Professional Unit Converter: Engineering, Physics & Daily Tools

Universal Unit Converter | Fast & Accurate Online Conversion Tool
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Professional Unit Conversion Suite

A comprehensive, high-precision engineering tool designed for professionals, students, and scientists. Convert over 400+ units across 40 distinct categories.

engineering

Engineering Precision

Specialized tools for Torque, Pressure, Power, and Energy. Convert Pascals to Bar, Newton-meters to Foot-pounds, or Horsepower to Watts with 4-decimal precision suitable for technical documentation.

science

Physics & Laboratory

Essential for physicists and chemists. Includes Radiation (Gray, Sievert), Magnetism (Tesla, Gauss), Density, and Viscosity calculations not found in standard calculators.

bolt

Electrical Units

A complete suite for electrical engineers. Convert Voltage, Resistance (Ohm), Current (Ampere), Capacitance (Farad), and Inductance instantly.

kitchen

Daily Life & Health

From kitchen Cooking conversions (Teaspoons to Milliliters) to Health metrics like Blood Sugar (mg/dL to mmol/L) and Fuel Consumption inverse calculations.

computer

Digital & IT

Data storage conversions from Bits to Petabytes, Data Transfer rates for network speed testing, and Typography units for graphic designers.

smart_toy

Smart Workflow

Features a built-in History log, Favorites system for quick access, and CSV Export capabilities. Works completely offline in your browser.

Frequently Asked Questions

Common questions about usage, accuracy, and unit standards.

Our converter uses standard international conversion factors (NIST/ISO standards). Results are displayed with up to 4 decimal places for readability. For extremely small or large values (like nanometers or petabytes), the tool automatically switches to scientific notation to maintain precision.
Yes, Unit Pro is 100% free to use for personal, educational, and commercial purposes. There are no hidden fees, subscriptions, or limits on the number of calculations you can perform.
Hover over any category card on the dashboard (or look at the top right of the converter screen) and click the Heart Icon. It will turn red, indicating it is saved. You can then access all your saved tools quickly from the "Favorites" tab in the sidebar.
Yes. We explicitly differentiate between US and UK units where necessary. For example, in the Volume and Cooking categories, you will see specific options for "Gallon (US)" vs "Gallon (UK)" or "Fluid Ounce (US)" to ensure you get the correct engineering value.
Absolutely. Navigate to the History tab in the sidebar. There you will find an "Export CSV" button. This will download a spreadsheet-compatible file containing your recent calculations, complete with timestamps and unit details.
This is Scientific Notation. It appears when a result is extremely small or extremely large, making it hard to read in standard format. For example, 2.5e-7 is equal to 0.00000025. This format ensures you don't miss any zeros in high-precision physics or engineering calculations.
Once the page is loaded, the application runs entirely on your browser using client-side JavaScript. You can disconnect from the internet and continue to perform conversions without interruption. No data is sent to our servers, ensuring your privacy.