Calculator: Scientific & Units

Calculator — Scientific Calculator, Unit Converter and 50+ Tools

An all-in-one calculator for Android. Everyday arithmetic, advanced equations, conversions and 58 dedicated calculators in one fast app that works offline.

🔢 Standard calculator
Clear, reliable arithmetic for daily use:
• Addition, subtraction, multiplication, division
• Percentage, discounts, tips and bill splitting
• Full calculation history, ready to reuse

🧮 50+ dedicated calculators
58 calculators across 34 tools, grouped into Finance, Everyday, Math and Health. Star the ones you use for one-tap access.

• Finance — mortgage and home payment, personal and auto loan with monthly instalment (EMI), simple and compound interest, investment and recurring monthly contribution (SIP), retirement planning, savings goal, hourly to yearly salary, 50/30/20 budget, sales tax and GST
• Everyday — percentage of, percentage change, discount, tip, unit price, age calculator, days between dates, countdown, working hours and payroll, trip fuel cost, EV charge time and range, paint, tiles and concrete, GPA, Roman numerals
• Math — fractions, mean, median and standard deviation, quadratic equations, binary, hexadecimal and decimal base converter, GCD and LCM, ratios, Pythagoras and triangle area, shape area and perimeter, combinations and permutations, random numbers
• Health — BMI, calories, macros and deficit, body fat and ideal weight, daily water intake, heart rate training zones, calories burned, running pace, one-rep max, fertility window and due date, sleep times

🔬 Scientific calculator
• Trigonometry (sin, cos, tan) and hyperbolic functions
• Logarithms (ln, log₁₀), powers, roots and factorials
• Parentheses, memory keys, degrees and radians
• Built for students, engineers and technical work

🔄 Unit converter — 11 categories
Length, weight, temperature, speed, area, volume, time, data, energy, pressure and angle. From metres and kilograms to miles, pounds, light years and nautical miles.

💱 Currency converter — 52 currencies
Indian Rupee, US Dollar, Euro, Pound, Yen, Yuan, Dirham, Riyal and 44 more, with live exchange rates.

🎨 42 themes
Dark and light, from AMOLED-friendly Charcoal, Cobalt, Emerald, Mono and Neon to soft Ocean, Cream, Forest, Paper, Stone and Lilac. Animated packs include Crimson, Midnight, Retro, Bubblegum, Sunset, Lavender, World Cup and Zodiac, plus Custom, where you build your own palette.

📳 Built to stay out of the way
• Clean interface, no account and no sign-up
• Haptic feedback and fast start-up
• Small download size
• Works offline — only live currency rates need a connection

Whether you are a student solving equations, a professional checking an EMI or a GST amount, or you simply want a calculator that opens instantly, everything is in one place.

Recent changes:
Version 3.1.8: DEG mode now applies to sin, cos and tan (sin 30 = 0.5) and is shown on screen. Fixed π, e, % and ±, unclosed brackets, and very large or very small numbers. Faster and more stable start-up.