Panel
Currencies and time zones too
About
Sums, unit and currency conversions and times across zones, answered right in
the command palette. Type 12*(3+4), 2^10, 15% * 80, sqrt(2),
3h in min, 72 f to c, 5 km in mi, 100 usd in eur, $50 to gbp,
5pm london in tokyo or now in sf, and the answer comes first in the
results. Return copies it. Plain numbers and words get
no answer, so it never crowds a normal search. The panel keeps your last ten
answers.
Gallery
Every place it shows up.
From anywhere
Run it without opening it.
calculator⌥ Space
- CalculateCalculator
Every command is in Stackbar's palette, and can have its own hotkey, a stackbar:// link, or a Shortcuts action.
Inside
Everything it does.
Settings
turn currency conversion off, and Calculator makes no network requests at all.
Units
length, mass, time, data, volume, speed and temperature, including mixed amounts such as 5 ft 10 in to cm or 1h 30min in min.
Currencies
the European Central Bank's reference rates (about 30 currencies, updated each working day) from Frankfurter, fetched at launch and every six hours. $, €, £, ¥, ₹ and names like euros work as well as codes.
Time zones
any city in a time zone's name (tokyo, new york), plus common ones like sf, nyc, bangalore, uk and abbreviations like pst and ist. Without a starting place, the time is yours.
Install
Two clicks in Stackbar.
- Open it in Stackbar, or open Stackbar → Settings → Store and find Calculator.
- Choose Install.
- It appears in your panel.
Don't have Stackbar yet? Download it free.
Or from a terminal
stackbarctl install --index https://navbytes.github.io/stackbar-plugins/index.json io.navbytes.stackbar.plugins.calculator- Version
- 1.6.0
- Updated
- November 8, 2026
- Category
- Productivity
- Shows in
- Panel, Settings page
- Requires
- Stackbar 0.21.0 or later
- Publisher
- navbytes
- Bundle
- sha256 ce334477057b…
Version history
What's new
1.6.0Latest
- Adding or taking off a percent works the way you'd expect: 100 + 10% is 110 and 200 - 15% is 170.
- Speeds: 60 mph in km/h, 10 m/s in mph, knots.
- The constant e works, as in 2*e or e^2.
- On a Mac that writes decimal commas, answers use a decimal comma too, so they paste straight into your spreadsheet.
- Opening Calculate with nothing typed lists your recent answers.
- A currency sum with no exchange rates says why (offline, or conversion turned off), and dividing by zero says so, instead of asking for a sum.
- Accented city names work: now in são paulo.
- Removed Paste Answer, which never worked: Calculator has no clipboard access. Return still copies the answer.
1.5.0
- Mixed amounts convert:
5 ft 10 in to cm,1h 30min in min.
- Mixed amounts convert:
1.4.0
- A decimal comma works: 2,5*2 is 5 and 1,5 km in m is 1500 m. A comma is a thousands separator only when it can be one (1,000 and 1,234.56 as before), and on a Mac that writes decimal commas it is always the decimal mark.
- If the exchange rates can't be fetched (offline at launch, say), it tries again after 30 seconds, 2, 10 and 30 minutes, and on wake, instead of waiting six hours.
- Time-zone answers no longer rebuild a date formatter and a pattern on every keystroke.
- Indian digit grouping works: 1,00,000 and 12,34,567 are read as lakhs and crores. A lone . or , is no longer a number.
1.3.0
- The answer is always first in the palette, above a past answer to the same sum that the panel keeps.
- The palette only asks Calculator about text that can have an answer.
1.2.0
- A setting to turn currency conversion off. Off, no exchange rates are fetched and the plugin never goes online.
1.1.0
- Currency conversion:
100 usd in eur,$50 to gbp. - Times across zones:
5pm london in tokyo,now in sf. - Asks for network access to fetch exchange rates.
- Currency conversion:
1.0.0
- First release: the palette's calculator, now a plugin.
More productivity