Sam's Digital Instruments
No accounts, no saved history. Calculator and converter values live only in your browser tab and disappear when you refresh or close it. The clock uses your device's own system time.
They're fetched live from a public exchange-rate API each time you load the page, so they reflect current mid-market rates. They're meant for quick reference, not for pricing an actual transfer or payment.
Degrees. Trigonometric functions (sin, cos, tan) all expect and return values in degrees, which is the more common default for quick everyday calculations.
Yes — use the "Add a city" dropdown under the clock to add any city from the list. There's no fixed limit; the row will wrap to a new line as you add more.