Unit Converter

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How to use Unit Converter

This is the Unit Converter utility. 100% client-side and offline capable.

Common Questions

Does this unit converter work offline?

Yes, 100%. Once the page loads, all conversion logic runs directly in your browser using JavaScript. You can even disconnect your internet and continue converting units without any interruption.

Which temperature conversions use formulas?

Unlike simple multiplicative conversions (like meters to kilometers), temperature scales often have different zero points. Our tool automatically displays the specific formula used for conversions between Celsius, Fahrenheit, Kelvin, Rankine, and Réaumur, helping students understand the math behind the numbers.

How accurate are the conversions?

Our tool uses high-precision floating-point arithmetic (up to 15 decimal places) for calculations. By default, results used to display 4 decimal places, but you can adjust this in the Settings tab to see up to 10 decimal places or switch to scientific notation for extremely large/small values.

Can I save my favorite units?

Yes! Simply click the Star icon next to any unit in the selection list to add it to your Favorites sidebar. This allows quick access to your most frequently used conversions without searching through the categories every time.

Does it support scientific notation?

Absolutely. You can toggle "Scientific Notation" in the Settings. Additionally, our tool automatically switches to scientific format (e.g., 1.2e-9) for very small or very large numbers to ensure readability.

Is there a limit to how many conversions I can do?

For Free users, there is a generous daily limit. Pro users enjoy unlimited conversions. The tool also maintains a local History of your last 50 conversions, which you can clear at any time.

How many unit categories does this tool support?

Our converter is comprehensive, supporting 17 different categories. This includes standard measurements like Length, Mass, and Temperature, as well as specialized scientific units for Chemistry (Moles), Electricity (Amps/Volts), Flow Rate, Density, and more.

Can I convert Density units like g/L?

Yes, the tool includes a dedicated Density tab. You can easily convert between Grams per Liter (g/L), Kilograms per Cubic Meter (kg/m³), and other density units widely used in chemistry and physics.

Is this tool mobile-friendly?

Absolutely. The Unit Converter features a fully responsive, glassmorphic design that adapts seamlessly to smartphones, tablets, and desktops. The touch-friendly interface ensures you can perform conversions quickly on any device.