Settings: theme, currency and units
The Settings menu, the site-wide currency, the Metric/Imperial switch, and spacing.
The gear icon in the header opens the Settings menu. Its choices apply to the whole site and are remembered in this browser, so you set them once. Two more preferences — the unit system and the currency labels — are used by several tools at a time.
How to use it
- Click the gear icon at the right of the header.
- Choose a Theme, a Currency and a Spacing.
- Click anywhere else, or press Escape, to close the menu.
Options & controls
Settings menu
- Theme
- Light, Dark or System. System follows your device's own light or dark setting and changes with it. The clocks in fullscreen always use a dark background regardless.
- Currency
- The label used wherever a tool shows money. Choose from US dollar ($), Euro (€), British pound (£), Indian rupee (₹), Japanese yen (¥), Chinese yuan (CN¥), South Korean won (₩), Australian dollar (A$), Canadian dollar (C$), Singapore dollar (S$), Swiss franc (CHF), UAE dirham (AED), Brazilian real (R$), South African rand (R), or None (plain numbers).
- Use my region's currency
- A link under Currency that appears once you have picked one yourself. It clears your choice and goes back to the automatic default.
- Spacing
- Compact (default) or Comfortable. Compact fits more on the screen; Comfortable uses larger type and more space between things.
Currency, in detail
- The default
- Until you choose, the currency of your region is used, worked out from your browser's language setting (for example, English (India) gives rupees). Regions without a matching option default to US dollars. This is worked out on your device and never sent anywhere.
- Labels only
- The currency changes how amounts are labelled, never their value. Nothing is converted: if you type 1000, you see 1000 with the symbol you picked. Use the figures in the currency you are actually thinking in.
- Number grouping
- Rupees are grouped in the Indian style (12,34,567); all other currencies use the usual thousands grouping (1,234,567).
- Invoice PDFs
- On screen, the Invoice & Receipt Generator shows the symbol; in the PDF it prints the three-letter code instead (for example, “INR 1,200.00”), because PDF fonts cannot draw every symbol.
- Tools that use it
- Loan / EMI, Mortgage, Tip, Fuel Cost (for the cost), Freelance Hourly Rate, Simple vs. Compound Interest, Investment Projector, Invoice & Receipt Generator, and Home Budget Planner. The Discount Calculator always shows a dollar sign and does not follow this setting.
Metric / Imperial
- Where it is
- A toggle inside the BMI, Calorie Needs and Concrete Volume calculators (not in the Settings menu).
- How it is shared
- It is one setting for all three. Choose Imperial in the BMI calculator and the Calorie and Concrete calculators open in Imperial too. It is remembered in this browser. Metric is the default.
- What it does not do
- It does not convert numbers you have already typed. Each system keeps its own boxes; enter your figures again after switching.
Tips & guidelines
- If you always work in one currency, pick it once and every calculator will match.
- Choose “None” if you would rather see plain numbers, for example when the amounts are not money at all.
- Comfortable spacing is easier to read on a large monitor or for people who prefer bigger targets; Compact is better on a phone.
Limits
- There is no currency conversion and no exchange-rate lookup anywhere on the site.
- The list of currencies is fixed to those above; other currencies can be handled with “None”.
Saved in your browser
Theme, currency (only if you chose one), spacing and the Metric/Imperial choice are each stored in this browser's local storage on this device. They are never sent anywhere.