All Converter Pro
Unit Converter Online
Convert length, weight, temperature, area, volume, speed and data units instantly. Metric to imperial and back: km to miles, kg to lbs, °C to °F and more.
About this Unit Converter tool
The unit converter handles the everyday conversions between metric and imperial systems: length (kilometers ↔ miles, centimeters ↔ inches, meters ↔ feet), weight (kilograms ↔ pounds, grams ↔ ounces), temperature (Celsius ↔ Fahrenheit), plus area, volume, speed and digital data units (MB, GB, TB). Results update instantly as you type, in both directions, with sensible precision. It covers the conversions that come up in recipes (grams to cups by weight, oven °C to °F), travel (km to miles, kg baggage limits to lbs), fitness (body weight, running pace) and work (file sizes, room dimensions, shipping weights) — without ads-cluttered lookup tables or doing mental math with remembered factors.
How to use Unit Converter
- Open the tool and add your file, text or values.
- Review the available options such as page range, output format, quality, password or language.
- Start the process and keep the browser window open until it finishes.
- Download the result and continue with a related tool if needed.
Useful tips
- For scanned PDFs, tools with OCR support run text recognition automatically where possible.
- For large files, use compression tools before sharing by email or uploading to portals.
- For best results, upload clean files with the correct extension and avoid corrupted documents.
Frequently asked questions
Which unit types can I convert?
Length, weight/mass, temperature, area, volume, speed and digital data. Within each type all the common metric and imperial units are available — for example meters, kilometers, inches, feet, yards and miles under length.
How accurate are the conversions?
Conversions use the exact standard factors (for example 1 inch = 2.54 cm exactly) and display results with enough precision for practical use.
How does temperature conversion differ from other units?
Temperature uses formulas rather than multiplication: °F = °C × 9/5 + 32. That is why 0°C is 32°F, not 0°F — the scales have different zero points.
What is the difference between MB and MiB?
MB (megabyte) uses powers of 1000; MiB (mebibyte) uses powers of 1024. Storage makers use MB, operating systems often measure in MiB — which is why a "500 GB" drive shows as roughly 465 GB in Windows.
Does the converter work offline or on mobile?
It runs directly in your browser and works on desktop, tablet and mobile. Values are calculated on your device — nothing is uploaded.
Is it free?
Yes — free and unlimited, with no account.