# Units & language

URL: https://pro-weather.com/docs/customizing/units-language

> Choose metric or imperial readings and one of four languages for your public site.

Your public site can show readings in **metric or imperial** units and speak one
of **four languages**. Both settings live on your site's **Settings** page,
under **Localization**, and apply to your live site as soon as you save.

## Units

Pick the unit system used for everything on your public site:

| System | Temperature | Wind | Pressure | Rain |
| --- | --- | --- | --- | --- |
| **Metric** | °C | km/h | hPa | mm |
| **Imperial** | °F | mph | inHg | in |

The choice applies everywhere: the overview tiles, charts, records, the
forecast, the almanac and the monthly summary email. A few things worth knowing:

- **Alert thresholds follow your units.** When you
  [set up email alerts](https://pro-weather.com/docs/alerts), you enter thresholds in your site's
  units, and alert emails use them too.
- **CSV exports include both systems.** Your
  [data exports](https://pro-weather.com/docs/account-billing/account#export-your-data) carry each
  reading in metric *and* imperial columns, so switching later never loses
  anything.
- **Particulates stay metric.** Air-quality readings (PM1, PM2.5, PM10) are
  always in µg/m³, the international standard, in both systems.

### US stations default to imperial

When you first connect a station located in the **United States** (or a US
territory), your site starts in **imperial** automatically; everywhere else
starts in **metric**. This happens only on the first connect and never
overrides a choice you've made yourself - you can switch systems at any time.

## Language

Your public site can be shown in:

- **English**
- **Nederlands** (Dutch)
- **Français** (French)
- **Deutsch** (German)

Every visitor-facing label is translated: tabs, tiles, charts, the forecast,
warnings, the almanac and the cookie-consent banner. Dates and times are
formatted the way that language expects (for example, Dutch sites show
day-month dates and a 24-hour clock).

> **What stays in English**
>
  The language setting covers your public weather site. Your dashboard and the
  emails Pro Weather sends you are in English.

All four languages are included on the **Pro plan** and during your **free
trial**.

## Time zone

There's nothing to configure: your site's clock follows your **station's time
zone**, discovered automatically from WeatherLink when you
[connect](https://pro-weather.com/docs/getting-started/connect-weatherlink). Daily rain totals, the
almanac's days, and sunrise/sunset all use station-local time, so a rainy
evening never spills into the wrong day.

## Next steps

- [Set up email alerts](https://pro-weather.com/docs/alerts) with thresholds in your units
- [Customize the appearance](https://pro-weather.com/docs/customizing/appearance)
- [History, records & the almanac](https://pro-weather.com/docs/features/almanac-history)