Simple Calculator

Simple Calculator is a clean, fast and friendly calculator that handles all of your everyday math — from splitting a bill to planning a mortgage.

Start with a big, thumb-friendly keypad for quick sums, expand to a full scientific calculator with one tap, convert between hundreds of units, and dig into powerful financial tools — all in a beautiful, distraction-free design with full light and dark modes.

CALCULATOR
• Basic keypad — large, comfortable keys for everyday math
• Scientific mode — trigonometry, logarithms, powers, roots, factorials, π and e
• Degrees or radians, adjustable decimal precision
• Live result preview as you type
• Memory keys (MC, MR, M+, M−) and ANS
• Calculation history — tap any past result to reuse it
• Long-press to copy results, satisfying haptic feedback

UNIT CONVERTER
• 13 categories: length, area, volume, mass, temperature, speed, time, data storage, energy, power, pressure, angle and fuel economy
• Works completely offline
• Swap units with one tap, results update as you type

FINANCE TOOLS
• Tip calculator with bill splitting
• Discount & VAT calculator
• Loan calculator — monthly payment, total interest and a full month-by-month amortization schedule, plus see how much extra payments save you
• Investment calculator — future value, year-by-year growth, contributions vs interest and inflation-adjusted returns

DESIGNED TO BE SIMPLE
No clutter, no confusion — just a calculator that works. Whether you're doing homework, cooking, shopping, traveling, or planning your financial future, Simple Calculator keeps everything one tap away.

PREMIUM (OPTIONAL)
Simple Calculator is free to use, supported by ads. The advanced loan and investment tools can be tried anytime by watching a short ad, or unlocked forever with Premium. One single purchase removes all ads and gives you unlimited access to every finance tool — no subscription, no hidden charges. Buy once, enjoy forever.

Download Simple Calculator today and make every calculation count.