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Calculator, percentage, tip, unit & speed-time tools, all in one app.
Basic Calculator is your everyday math companion, built for speed and simplicity. Do standard arithmetic with a clean, fast calculator, then switch to focused tools for the calculations you actually run into during the day. FEATURES • Standard Calculator – all-purpose arithmetic with expression history • Percentage Calculator – find percentages, increases, and decreases instantly • Markup Calculator – work out selling price and profit margin • Ratio Calculator – simplify and solve ratios • Speed, Distance & Time Calculator – solve for any one value from the other two • Unit Converter – length, weight, volume, temperature and more • Tip Calculator – split the bill and calculate tips in seconds • Date Breakdown – days, weeks, and months between two dates Why Basic Calculator • Clean, distraction-free interface • Works fully offline, no internet required • No unnecessary permissions • Fast, accurate results every time Whether you're checking a restaurant bill, converting units for a recipe, or working out a discount, Basic Calculator keeps everyday math quick and easy.