About
A calculator that's actually nice to use
Pebble Calculator is a free, browser-based calculator built for everyday use. No app to install, no account required โ just open it and start calculating. It works entirely in your browser, so it's fast, private, and always available.
Three calculator modes
Pebble gives you three distinct modes so you always have the right tool for the job.
- Standard โ Clean arithmetic for everyday calculations. Add, subtract, multiply, divide, percentages.
- Scientific โ Full scientific functions including trig (sin, cos, tan), inverse trig, hyperbolic functions, logarithms (log, ln), powers, roots, factorial, and constants ฯ and โฏ. Supports degree and radian modes.
- Financial (TVM) โ Time Value of Money calculator for loans, mortgages, savings, and investment planning. Solve for N, I/Y, PV, PMT, or FV with Begin/End period switching.
All features
- Three calculator modes โ Standard, Scientific, and Financial
- Six earthy color themes โ from warm clay to deep forest green
- Calculation history with one-tap result restore
- Copy result to clipboard in one click
- Optional typing sound effects with adjustable volume
- Button shape picker โ Square, Soft, Round, or Circle
- Six font choices including Serif, Rounded, and Geometric
- Full keyboard support for fast input
- All preferences saved locally โ your settings persist across visits
Who it's for
Pebble is for anyone who wants a calculator that looks good and works well. Students use the scientific mode for homework and exams. Professionals use the financial TVM mode to model loans and savings scenarios. Everyone else just wants something quick and clean for everyday arithmetic.
If you've ever found standard calculator apps cold and clinical, Pebble was designed with you in mind. The warm earthy tones, soft typography, and thoughtful layout make it a tool you'll actually enjoy opening.
Privacy
No personal data is collected. All preferences are stored locally in your browser. See the Privacy Policy for details on advertising cookies.
Questions or feedback?
We'd love to hear from you. Head to the Contact page to get in touch.