---
syntax: markdown
tags: [tldr, common]
source: https://github.com/tldr-pages/tldr.git
---
# qalc

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

- Launch in [i]nteractive mode:

`qalc {{--interactive}}`

- Launch in [t]erse mode (print the results only):

`qalc --terse`

- Update currency [e]xchange rates:

`qalc --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 [f]ile:

`qalc --file {{path/to/file}}`
