# A notepad calculator for Linux

Updated 18 October 2026 by Adrian Viziteu. Examples from the [syntax reference](https://useratio.app/docs), checked on 15 October 2026 with Germany's 19% VAT. Currency results change with the market.

Ratio is a text editor that calculates. Every line is a sum, and its answer appears beside it as you type. On Linux, it comes as an AppImage for any distribution or a .deb for Ubuntu, Debian and Mint, with the same engine as Ratio for Mac.

## What a sheet looks like

| dinner = 84 eur / 3 | €28 |
| --- | --- |
| dinner in usd | $31.41 |
| 5 km in mi | 3.11 mi |
| 15:00 London in Tokyo | Thu 23:00 |
| 1 gib in mib | 1,024 MiB |
| 255 in hex | 0xFF |
| chmod 755 | rwxr-xr-x |
| 99.9% uptime | 43 min 50 s |

## What it understands

- 160+ live currencies and major cryptocurrencies, refreshed every few hours, working offline with the last rates
- 150+ units, including data sizes in both SI and binary (“1 gb in mb”, “1 gib in mib”)
- Dates, time zones and working days that skip public holidays
- Developer maths: hex and binary, u8…i64 integers, bitwise operators, colours, file permissions, aspect ratios, Unicode, uptime budgets
- Equations, integrals and derivatives, statistics, complex numbers, primes
- VAT by country, margins, loans and `pmt`, `npv`, `irr`

## Install

**AppImage**, any 64-bit distribution: download it, make it executable and run it.

```
chmod +x Ratio-x86_64.AppImage
./Ratio-x86_64.AppImage
```

**.deb**, Ubuntu, Debian, Mint and others:

```
sudo apt install ./Ratio-amd64.deb
```

Needs a 64-bit Linux with glibc 2.35 or newer (Ubuntu 22.04, Debian 12, Fedora 36 and later). iCloud sync, sharing a sheet as an image or link, version history, import and export, Liquid Glass and the `ratio` Terminal command are Mac only for now.

## Price

Free for 7 days, then $9.99 once for one computer ($14.99 for two, $19.99 for three). No subscription, no account, and one license can mix Linux, Windows and Mac.

[Download Ratio for Linux](https://useratio.app/download?os=linux) · AppImage or .deb

## Questions

**Is Ratio open source?** No. Ratio is a paid app with a 7-day free trial. If you need an open-source calculator, see how it compares with [SpeedCrunch and Qalculate](https://useratio.app/speedcrunch-alternative).

**Which distributions does Ratio run on?** Any 64-bit distribution with glibc 2.35 or newer through the AppImage, for example Ubuntu 22.04 or later, Debian 12, Fedora 36 or later. The .deb is for Ubuntu, Debian, Mint and other Debian-based systems.

**Does it need an account or send my sheets anywhere?** No. There is no account and sheets stay on your computer. Ratio only goes online to download exchange rates and to check the license.

**Can I use one license on Linux and on a Mac?** Yes. A 2- or 3-computer license can mix Linux, Windows and Mac. Click “Deactivate this PC” in Ratio Pro to move it.

Source: https://useratio.app/notepad-calculator-linux