Press a hotkey. Type 72f to c or 100 usd to eur. Get the answer in the menu bar — plus batch media conversion when you need it.
Twenty categories, including temperature, currency, time zones, power, and number bases. Results update as you type. Press Return to copy, or turn on auto-copy.
Drop a folder of images, audio, or video and convert them together. Rename in bulk with tokens like {name}, {n}, and {ext}.
The input is focused when the panel opens. Set your own hotkey. Use Quick mode for typing or Guided mode for menus.
Media tab
Drop images, video, or audio and convert them in one pass. Rename uses the same Media tab with pattern tokens.
Drop files, choose an output format, run Convert.
Patterns like {name}_{nn}.{ext} for numbered batches.
Assign a global hotkey. ConvertIt appears over what you are doing and dismisses when you are finished.
Quick mode parses short phrases as you type. Guided mode is menus if you would rather pick units by hand.
72f to cFahrenheit to Celsius100 usd to eurLive currency rates3pm pst to tokyoTime zone converter45 lbs to kgPounds to kilograms5 mi to kmMiles to kilometers2 gal to lGallons to liters100 m/s to mphSpeed20% tip on 85 split 4Tip calculator18% of 250Percentages255 to hexNumber bases1500 w to hpWatts to horsepower25 mpg to l/100kmFuel economyMore detail on the Support page.
Yes. No account, subscription, or ads. The Mac App Store build and the DMG from this site are the same app.
Twenty categories: temperature, length, weight, volume, area, speed, pressure, energy, power, angle, frequency, data size, fuel economy, time, force, number base, time zones, currency, percentages, and tips. A searchable catalog covers less common units. The Media tab converts images, video, audio, and spreadsheets (CSV, TSV, XLSX) and renames files in batches.
Units, time zones, percentages, tips, and media run on your Mac. Currency uses European Central Bank reference rates, cached for 24 hours, so recent rates still work offline.
No. Conversions stay on your device. There is no account and no analytics SDK in the app. See the privacy policy.
macOS 14 Sonoma or later, Apple Silicon or Intel.
Click the menu bar icon, or press the global hotkey (Control-Option-Shift-C / ⌃⌥⇧C by default; change it in Settings). You can also run it from Shortcuts.