Basic Calculator
A clean, responsive basic calculator with percentage, square root, memory (M+/M−/MR/MC) and calculation history. Fast, reliable and always accessible from the home screen.
🧮 Productivity · Tools
150+ Calculators.
One Smart App.
Zero Limits.
From quick arithmetic to full mortgage amortization, SIP projections, BMI analysis and 20-shape geometry — Calculator Hub puts every calculator you'll ever need right in your pocket.
150+ CalculatorsEvery kind of calculation covered
Finance & MortgageEMI, SIP, loan & investment tools
Health & BMIBMI, BMR, calorie & fitness metrics
Unit Conversion10 categories, instant conversion
Categories
A Calculator for Every Need
Nine broad categories, 150+ specialized tools — organized so you find what you need in seconds.
Basic Math
Standard arithmetic, percentage, square root, power and memory functions for everyday calculations.
Scientific
Trigonometry (sin/cos/tan), logarithms, factorials, exponents and advanced scientific functions.
Finance
Compound interest, simple interest, profit/loss, break-even and currency exchange calculators.
Mortgage & EMI
Loan EMI, amortization schedule, prepayment impact and total interest over loan tenure.
Investment & SIP
SIP returns, lump-sum growth, FD/RD maturity, CAGR and retirement corpus calculators.
Health & BMI
BMI classification, BMR, TDEE, ideal weight, body fat percentage and calorie deficit tools.
Geometry
Area, perimeter and volume for 20+ shapes — circle, triangle, rectangle, sphere, cylinder and more.
Statistics
Mean, median, mode, standard deviation, variance, percentile and probability calculations.
Unit Conversion
Length, weight, temperature, area, volume, speed, pressure, energy, data size and currency.
Features
Powerful Tools, Simple Interface
Each calculator is purpose-built with the inputs and outputs that matter most for that specific use case.
Scientific Calculator
Full scientific mode with sin, cos, tan and their inverses, log, ln, exponents, factorials, combinations, permutations and degree/radian toggle. Ideal for students and engineers.
EMI & Loan Calculator
Enter principal, interest rate and tenure to get your monthly EMI instantly. View the full amortization schedule — every month's principal and interest breakdown — plus total interest payable.
SIP & Investment Planner
Calculate SIP maturity value, lump-sum growth with CAGR, FD maturity and the corpus needed for retirement. Supports both monthly and annual contribution modes.
BMI & BMR Calculator
Calculate Body Mass Index with WHO classification (Underweight / Normal / Overweight / Obese), Basal Metabolic Rate using the Mifflin–St Jeor equation and TDEE by activity level.
Geometry Calculator
Compute area, perimeter and volume for 20+ geometric shapes: circle, ellipse, triangle, square, rectangle, trapezoid, rhombus, sphere, cube, cylinder, cone, pyramid and more.
Statistics Calculator
Enter a data set and instantly get mean, median, mode, range, variance, standard deviation, quartiles (Q1/Q2/Q3) and interquartile range. Great for academic and professional data analysis.
Unit Converter
Covers 10 conversion categories — length (km/mi/ft/cm), weight (kg/lb/oz), temperature (°C/°F/K), area, volume, speed, pressure, energy, data size and live currency rates.
Discount & Tax Calculator
Calculate discounted price, savings amount, GST-inclusive/exclusive totals, tip percentage split across people and fuel cost per kilometer — all the everyday calculations you reach for.
Showcase
See It in Action
Real numbers, real results — this is what Calculator Hub delivers every time.
Finance & Mortgage
Plan Loans with Complete Clarity
The EMI Calculator doesn't just give you a monthly number — it walks you through every rupee. See your full amortization schedule, understand how much of each payment goes to principal versus interest, and model different scenarios by adjusting tenure or rate.
- Instant EMI from principal, rate and tenure inputs
- Full month-by-month amortization table
- Prepayment impact simulation — see how early payments save interest
- SIP planner shows how to grow a corpus alongside your loan
- Works offline — no internet needed for any calculation
Health & Fitness
Know Your Body By the Numbers
The Health calculator suite goes beyond a simple BMI number. It tells you exactly which WHO category you fall in, calculates your daily calorie requirement at your activity level and gives you a personalized ideal weight range — so you have data to guide real decisions.
- BMI with WHO classification (Underweight / Normal / Overweight / Obese)
- BMR using the accurate Mifflin–St Jeor equation
- TDEE calculator for 5 activity levels (sedentary to very active)
- Ideal weight range based on height using 4 established formulas
- Body fat percentage estimator using BMI-based Navy formula
App Preview
Calculator Hub in Action
150+ tools, one beautiful and intuitive experience.
🔢 Basic Math
🧪 Scientific
🏠 Mortgage & EMI
📈 Investment & SIP
💪 Health & BMI
All Categories
1.732
√3
sin0.5
cos0.87
log₁₀0.24
RAD · 2nd · ANS
Scientific Calculator
Height 175 cm · Weight 70 kg
BMI 22.9 · Normal ✓
BMR 1,785 kcal · TDEE 2,767 kcal
View Full Analysis →
Health & BMI
How It Works
Calculate Anything in 4 Steps
01
Download Free
Get Calculator Hub from the Google Play Store — completely free, no sign-up required.
02
Pick a Category
Browse 9 categories and tap the calculator type you need — Finance, Health, Science, Geometry and more.
03
Enter Your Values
Fill in the clearly labelled input fields. Every calculator shows you exactly what to enter and why.
04
Get Instant Results
Results appear immediately — save them, share them or use them to explore different scenarios.
FAQ
Frequently Asked Questions
Yes — Calculator Hub is a free download on Google Play with no hidden fees, subscriptions or locked calculators. All 150+ tools are available from the moment you install it.
The app includes 150+ purpose-built calculators across 9 categories: Basic Math, Scientific, Finance, Mortgage & EMI, Investment & SIP, Health & BMI, Geometry (20+ shapes), Statistics and Unit Conversion (10 categories).
Yes. The EMI & Loan Calculator lets you enter principal, annual interest rate and tenure to get your monthly EMI instantly. It also shows a complete amortization schedule — every month's principal repayment and interest component — along with the total interest you'll pay over the life of the loan.
Absolutely. Enter your monthly SIP amount, expected annual return and investment duration to see your maturity value and wealth gained. You can also use the lump-sum and CAGR tools for one-time investments and the retirement corpus planner for long-term goals.
It provides your WHO classification (Underweight / Normal / Overweight / Obese), your Basal Metabolic Rate (BMR) using the Mifflin–St Jeor equation, your Total Daily Energy Expenditure (TDEE) for your chosen activity level and your ideal weight range based on established formulas.
The Geometry calculator covers 20+ shapes including circle, ellipse, triangle, square, rectangle, parallelogram, trapezoid, rhombus, regular polygon, sphere, cube, cuboid, cylinder, cone, pyramid, frustum, torus and more — computing area, perimeter and volume as applicable to each shape.
Yes — all 150+ calculators work fully offline. No internet connection is needed for any calculation. The only feature that benefits from connectivity is the live currency conversion, which fetches up-to-date exchange rates when a connection is available.
Ready for 150+ Calculators?
Download Calculator Hub and carry every calculation you'll ever need — finance, health, science, geometry and more — right in your pocket.
Get Calculator Hub on Google Play