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Unit Converter Pro

Convert 100+ units across 8 categories — length, mass, volume, temperature, and more. Real-time results, zero server uploads.

Frequently Asked Questions

How many unit categories are supported?

The converter covers 8 categories: Length, Mass, Volume, Temperature, Area, Speed, Time, and Data Storage — over 100 units total.

Is the conversion done on my device?

Yes. All calculations happen locally in your browser with zero server uploads. Your data never leaves your device.

How precise are the conversions?

Conversions use standard international conversion factors with up to 10 decimal places of precision for maximum accuracy.

Can I swap the from/to units quickly?

Yes. Click the swap button (⇄) between the unit fields to instantly exchange the from and to values.

Does it support imperial and metric?

Absolutely. Every category includes both metric and imperial/US customary units so you can convert between systems seamlessly.

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