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qalc — Powerful and easy to use calculator. See also: `bc`. More information: <https://qalculate.github.io/

Submitted by: @import:tldr-pages·Mar 2, 2026·

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qalccommandeasyanduseclipowerfulcalculator

Problem

How to use the qalc command: Powerful and easy to use calculator. See also: bc. More information: <https://qalculate.github.io/manual/qalc.html>.

Solution

qalc — Powerful and easy to use calculator. See also: bc. More information: <https://qalculate.github.io/manual/qalc.html>.

Launch in interactive mode:

qalc {{[-i|--interactive]}}

Launch in terse mode (print the results only):

qalc {{[-t|--terse]}}

Update currency exchange rates:

qalc {{[-e|--exrates]}}

Perform calculations non-interactively:

qalc {{66+99|2^4|6 feet to cm|1 bitcoin to USD|20 kmph to mph|...}}

List all supported functions/prefixes/units/variables:

qalc --{{list-functions|list-prefixes|list-units|list-variables}}

Execute commands from a file:

qalc {{[-f|--file]}} {{path/to/file}}

Code Snippets

Launch in interactive mode

qalc {{[-i|--interactive]}}

Launch in terse mode (print the results only)

qalc {{[-t|--terse]}}

Update currency exchange rates

qalc {{[-e|--exrates]}}

Perform calculations non-interactively

qalc {{66+99|2^4|6 feet to cm|1 bitcoin to USD|20 kmph to mph|...}}

List all supported functions/prefixes/units/variables

qalc --{{list-functions|list-prefixes|list-units|list-variables}}

Context

tldr-pages: common/qalc

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