Unit Converter
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Convert over 400 units of length, weight, temperature, volume, speed, pressure, energy and more. Or just type a conversion like “5 ft 10 in to cm”.
Free Online Converters for Units, Currency and Images
Convert a measurement, compare an amount in another currency, make a photo easier to share or turn notes into a document. Choose a converter below to see its supported units or formats.
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Currency Converter
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Convert between 160+ world currencies at the latest mid-market exchange rates, with the source and update time shown for every rate.
Image Tools
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12 free image tools that run in your browser: convert HEIC, WebP and PNG, compress, resize, crop and remove photo metadata without uploading anything.
Markdown Tools
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18 free Markdown tools that run in your browser: an editor, slides, a README generator, Markdown to PDF, Word, Slack and Jira, a linter and more.
Which tool should I use?
Measurement units
Use Unit Converter for measurements such as length, mass and temperature. Conversion pages include formulas and example values so you can check the result.
Currency estimates
Check the rate timestamp when comparing currencies. Reference exchange rates can differ from the amount a bank or payment provider offers after fees.
Choosing an image format
JPG is useful for sharing photographs, PNG supports transparency, and WebP is an option for web images. Open Image Tools to choose the conversion you need.
Documents written in Markdown
Open Markdown Tools to turn a Markdown file into a PDF, a Word document or HTML, or to go the other way from Word or a web page. Each converter has a preview, so you can check the result before you save it.