Smart Calculator: All in One

Tired of switching between five calculator apps? Smart Calculator: All in One covers everyday math, finance, education, and travel. From loan EMIs and currency conversion to fuel costs and GPA, it brings 16 easy-to-use calculators into one clean app, so you stop juggling separate tools.

Calculators Included
• Scientific Calculator — equations, trigonometry, and advanced math
• Unit Converter — length, weight, temperature, volume, and more
• Currency Converter — exchange rates for 150+ world currencies
• Percentage Calculator — percentages, increases, decreases, and ratios
• Discount Calculator — final price and savings after any reduction
• Loan EMI Calculator — monthly payments, interest, and total cost
• Date Calculator — difference between dates, add or subtract days
• Fuel Cost Calculator — estimate trip fuel costs before you travel
• Fuel Efficiency Calculator — track economy in MPG or KPL
• GPA Calculator — semester or cumulative GPA
• Tip Calculator — split a bill and work out the tip
• Sales Tax Calculator — prices with or without tax
• Unit Price Calculator — compare product prices to find value
• World Time Converter — current time across global time zones
• Hex Converter — hexadecimal, binary, decimal, and octal
• Savings Calculator — plan savings goals with interest and time

One App for Every Calculation
Most people keep several single-purpose calculators on their phone. Smart Calculator replaces them with one consistent, fast interface. Switch from a loan EMI to a currency conversion to a GPA calculation without leaving the app or learning a different layout each time.

Why Smart Calculator
• 16 calculators in one app
• Works offline
• Suited to students, professionals, and travellers
• No sign-up needed, so you can open and calculate instantly

Who It Is For
• Students — GPA, scientific, and percentage calculations
• Professionals — EMI, tax, savings, and currency
• Travellers — currency, world time, and fuel cost
• Shoppers — unit price and sales tax

No Ads. Offline. No Sign-Up.
Simplify every calculation in daily life with one reliable app that respects your time and privacy.

Frequently Asked Questions
How many calculators are included? Sixteen, covering math, finance, education, and travel.
Does it work offline? Yes, the calculators work offline.
Do I need an account? No sign-up is required.

Questions? officialrjappstudio@gmail.com

Recent changes:
• Updated for the latest Android (targeting Android 16 / API 36)
• Under-the-hood compatibility and stability improvements