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Click the calculator icon in the menu bar at the top right of your screen, or press Control-Option-C in any app. MenuCalc has no Dock icon, so it doesn't take up space while you work.

If your menu bar is full, macOS may hide some icons, especially on Macs with a notch. Quit a few other menu bar apps, or press Control-Option-C to open MenuCalc. You can also hold Command and drag icons in the menu bar to rearrange them.

Right-click the menu bar icon and choose Settings…, then go to General. You can record a new shortcut or turn it off.

Click + at the top of the calculator and choose a tab, or right-click the menu bar icon and choose New Tab. Each tab keeps its own numbers, and tabs are remembered when you quit.

Yes. Click the pin button at the bottom to keep the panel open, or click the window button to open MenuCalc in its own floating window that you can move anywhere.

Click Tape at the bottom of the calculator. The tape lists every result; click one to use it again. To name a result, click Add title above it.

Open the tape and click Export. Choose Save as CSV… for a spreadsheet, Save as Text…, or Print….

• M+ adds the number on screen to memory, and M− subtracts it.
• MR puts the stored number back on screen; MC clears it.
• While memory holds a number, it's shown at the top of the display.

You can hide the memory keys in Settings › General. Hiding them clears the memory.

Tax keys are off at first. Turn on “Show tax keys” in Settings › General and set your rate there, or click the rate key on the keypad to pick a common rate for your country. TAX+ adds tax to the number on screen, TAX− removes it from a price that includes tax, and GT shows the grand total of your results since you turned the tax keys on; deleting a row from the tape takes it out. Right-click GT, or clear the tape, to start a new total.

Yes. MenuCalc follows your Mac's number format (System Settings › General › Language & Region). To use a different one, open Settings › General › Number format and pick a style, such as 1,234.56, 1.234,56, 1 234,56, 12,34,567.89 (Indian lakh and crore) or 1'234.56. The decimal key and typing follow it.

Type numbers and + − × ÷ ( ) % directly. Return gives the answer, Esc or C clears, Delete removes the last digit, and K, M or B after a number multiply it by a thousand, million or billion. Settings › Shortcuts lists them all.

For the 30 currencies the European Central Bank publishes, MenuCalc uses its official reference rates, which are updated every working day. Rates for other currencies come from a free, public-domain currency feed. They're meant for everyday conversions; banks and card companies apply their own rates and fees.

Yes. MenuCalc saves the last rates it downloaded and comes with a set of rates built in, so conversions work without a connection. The converter shows when the rates were last updated, and the arrow button next to that fetches new ones.

Right-click the menu bar icon and choose Launch at Login, or turn it on in Settings › General. It's off until you turn it on.

Right-click the menu bar icon and choose Quit MenuCalc. To uninstall, quit it, then drag MenuCalc from your Applications folder to the Trash.

Any Mac with macOS 26 Tahoe or later, with Apple silicon or an Intel processor.