Free Online Calculation Tools for Finance, Study, Health & Everyday Math
Browse calculators for loans, tax, investments, marks, health estimates and everyday math. Search by task or category, enter your values, and review the result in your browser — no account required.
Browse Calculators by What You Need to Do
Explore calculators by purpose — financial planning, academic calculations, personal health estimates and everyday math.
Financial Calculators
EMI, GST, SIP, loans, tax, savings, retirement and other financial planning calculators.
Explore Financial tools →Academic & Marks Calculators
CGPA, GPA, percentage, attendance, grade planning and semester organisation tools.
Explore Academic tools →Personal & Health Calculators
BMI, calories, pregnancy, fitness, nutrition and other health-related estimation tools.
Explore Health tools →Math & Utility Calculators
Everyday math, scientific calculations, measurements, reliability metrics and other utility-focused calculators.
Explore Math & Utility tools →Browse All Calculation Tools
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Financial Calculators
Loans, tax, investments, savings and salary planning.GST Calculator
Add or remove GST for one or multiple items using separate or custom rates. View tax-exclusive prices, inclusive totals and the CGST/SGST or IGST split.
Open Calculator →EMI Calculator
Estimate monthly EMI, loan amount, repayment period or implied interest rate. Review interest costs, upfront charges, term comparisons and repayment schedules.
Open Calculator →SIP Calculator
Project a monthly SIP, lump sum or combined investment, or find a goal-based SIP. View contributions and illustrative growth using your chosen return assumption.
Open Calculator →Loan Calculator
Solve EMI, loan amount, tenure or implied interest rate from your entered terms. Review processing charges and monthly or yearly repayment schedules.
Open Calculator →FD Interest Calculator
Estimate FD maturity, required deposit for a target or periodic interest payouts. Compare two quoted offers using your selected interest rates and compounding methods.
Open Calculator →Recurring Deposit (RD) Calculator
Project recurring-deposit maturity, find a goal instalment or target tenure, and compare two offers. Adjust deposit timing and compounding to match your planning assumptions.
Open Calculator →PPF Calculator
Project PPF savings from annual or monthly deposits. Compare deposit timing and estimate an annual goal contribution using your entered interest-rate assumption.
Open Calculator →EPF Calculator
Project EPF balances from payslip credits or wage assumptions. Compare extra VPF contributions and estimate the monthly top-up needed for a target balance.
Open Calculator →NPS Calculator
Project an NPS corpus from monthly, annual or combined contributions. Estimate a goal contribution and explore illustrative lump-sum and annuity-income scenarios.
Open Calculator →Income Tax Calculator
Estimate ordinary-income tax for resident individuals within the ₹50 lakh scope. Compare supported regimes by year, enter tax credits and view AY 2026–27 ITR guidance.
Open Calculator →Salary Tax Calculator
Create a customised salary slip with earnings, deductions, attendance, PF, ESI and net pay. Add your branding, export Word or print to PDF.
Open Calculator →Discount Calculator
Find sale price, original price or discount percentage. Apply flat or percentage reductions, combine successive discounts and calculate bulk-purchase totals and savings.
Open Calculator →Simple & Compound Interest Calculator
Calculate simple or compound interest on one starting amount. Compare both methods or find the principal needed for a future target, with flexible duration and compounding options.
Open Calculator →Product Profit-Loss Calculator
Solve product selling price, cost price or profit from entered costs and per-unit expenses. View margins, quantity totals and a separate illustrative GST breakdown.
Open Calculator →8th Pay Commission Salary Calculator
Explore salary scenarios using assumed fitment factors, allowances and deductions. Compare factors or solve for a target basic pay; outputs are not officially notified salaries.
Open Calculator →Retirement Calculator
Estimate retirement corpus, required monthly savings, a retirement spending budget or fund runway. Include inflation, pension income, assumed returns and a separate reserve.
Open Calculator →Car Loan EMI Calculator
Estimate car EMI or purchase budget from the on-road price and down payment. Solve repayment months or quoted rate, with fee-adjusted APR and schedules.
Open Calculator →Home Loan Calculator
Plan home EMI, property budget, repayment months or implied interest rate. Separate the down payment and unfinanced purchase costs, and review APR and repayment schedules.
Open Calculator →Mortgage Loan Calculator
Estimate mortgage EMI and broader monthly housing costs, including entered property tax, insurance and association dues. Explore purchase budget, repayment period and implied rate.
Open Calculator →SSY Calculator
Estimate Sukanya Samriddhi maturity, find a deposit for your target, and compare deposit timing or interest-rate assumptions.
Open Calculator →NSC Calculator
Estimate five-year NSC maturity from a one-time deposit, or find the deposit needed for a target.
Open Calculator →APY Calculator
Find Atal Pension Yojana contributions by joining age and pension slab. Compare monthly, quarterly and half-yearly debits, annual costs and budget fit.
Open Calculator →SCSS Calculator
Estimate SCSS quarterly interest from a deposit, or the deposit for a target income. View monthly budget equivalents, first-quarter estimates and cash-flow tables.
Open Calculator →Gratuity Calculator
Estimate gratuity using verified monthly wages and service. Compare service rounding, fixed-term calculation conventions and the standard payment ceiling.
Open Calculator →Savings Calculator
Project a savings balance or find the monthly deposit needed for a goal. Compare deposits, modelled growth and inflation-adjusted value, with monthly and yearly schedules.
Open Calculator →SWP Calculator
Model monthly withdrawals from your corpus and see the remaining balance or first shortfall. Compare return assumptions, delayed withdrawals and yearly increases, with a detailed payout schedule.
Open Calculator →CAGR Calculator
Find the compound annual growth rate between two values. Use years or calendar dates, compare two cases, and view total return, gain or loss and an equivalent growth schedule.
Open Calculator →HRA Calculator
Calculate exempt and taxable HRA from your monthly salary, allowance, rent and rented-home city. Add separate periods for changes and apply the selected year’s city limits.
Open Calculator →Rent vs Buy Calculator
Compare buying with renting a house, flat, personal car or commercial vehicle. Model loan payments, asset appreciation or depreciation, rising rent and invested savings.
Open Calculator →Academic & Marks Calculators
CGPA, GPA, percentage, attendance, grade planning and semester organisation tools.Academic Grade Calculator
Weighted course grade plus the final-exam score needed to reach your target.
Open Calculator →CGPA Calculator
Cumulative GPA across semesters with % conversion.
Open Calculator →GPA Calculator
Semester GPA on 4.0, 5.0, 7.0, 10.0 & percentage scales.
Open Calculator →Percentage Marks Calculator
Marks-to-% in three modes: subject-wise, simple total & CGPA conversion.
Open Calculator →Grade Prediction Calculator
Predict final grades, required scores & difficulty-based study schedules.
Open Calculator →Attendance Calculator
Current % and classes you can miss or must attend.
Open Calculator →Credit Load Calculator
Weekly effort hours from credits & difficulty, plus credits-per-semester pace.
Open Calculator →Financial Aid Calculator
Financial need (cost minus family contribution) and loan payment projections.
Open Calculator →Study Time Tracker
Daily study hours by subject for productivity.
Open Calculator →Marks Calculator
Total marks, overall % across subjects and instant scale conversion.
Open Calculator →Course Calculator
Weighted course analysis with strongest, weakest & highest-impact insights.
Open Calculator →Course Load Balance Calculator
Difficulty-weighted load score with a light-to-overload intensity meter.
Open Calculator →GPA Improvement Calculator
Semesters and GPA needed to reach target CGPA.
Open Calculator →Grade Point Calculator
Semester GPA and quality points from credits and letter grades.
Open Calculator →Grade Scale Calculator
Convert between %, letter grades and GPA scales.
Open Calculator →Grade Weight Calculator
Weighted course grade from assessment scores & weights on 5 output scales.
Open Calculator →Semester Planner
Weekly class schedule builder with day-by-day view and credit-load check.
Open Calculator →Study Break Timer
Pomodoro-style work and break intervals for focused study sessions.
Open Calculator →Negative Marking Calculator
Calculate exam scores with fractional or fixed penalties. View deductions, accuracy and unanswered questions.
Open Calculator →Personal & Health Calculators
Fitness, nutrition, pregnancy and health-related estimates.Age Calculator
Calculate age in years, months and days, plus the next birthday.
Open Calculator →BMI Calculator
Calculate BMI from height and weight with reference categories.
Open Calculator →Pregnancy Due Date Calculator
Estimate due date and pregnancy weeks using four dating methods.
Open Calculator →Weight Loss Calculator
Estimate a daily calorie target and a weight-loss timeline.
Open Calculator →Calorie Calculator
Estimate daily calorie needs for maintenance, weight loss or gain.
Open Calculator →Sleep Calculator
Explore sleep and wake times using assumed sleep-cycle lengths.
Open Calculator →BMR Calculator
Estimate daily energy needs at rest from your entered details.
Open Calculator →Body Fat Calculator
Estimate body-fat percentage and lean mass from body measurements.
Open Calculator →Water Intake Calculator
Estimate daily water needs from body weight and activity.
Open Calculator →Macro Calculator
Estimate protein, carbohydrate and fat amounts for a calorie target.
Open Calculator →BAC Calculator
Estimate blood alcohol content; not a test of driving safety.
Open Calculator →Ideal Body Weight (IBW) Calculator
Compare body-weight estimates from four reference formulas.
Open Calculator →Ovulation Calculator
Estimate ovulation timing and fertile days from cycle information.
Open Calculator →TDEE Calculator
Estimate daily energy needs from age, body size and activity level.
Open Calculator →Heart Rate Zone Calculator
Estimated heart-rate zones for different exercise intensities.
Open Calculator →Baby Growth Percentile Calculator
Explore growth percentile estimates from age and measurements.
Open Calculator →Period Calculator
Estimate upcoming period dates from your cycle information.
Open Calculator →Pregnancy Trimester Calculator
Estimate pregnancy weeks, trimester and milestone dates.
Open Calculator →Waist-to-Hip Ratio Calculator
Waist-to-hip ratio with reference categories.
Open Calculator →Fertility Window Calculator
Estimated fertile window based on the selected cycle information.
Open Calculator →Calorie Burn Calculator
Estimated calories burned across a wide range of activities.
Open Calculator →Daily Protein & Fiber Calculator
Estimate daily protein and fibre amounts from your inputs.
Open Calculator →Sugar Intake Calculator
Daily sugar-intake limits with guideline-based reference values.
Open Calculator →Waist-to-Height Ratio
Waist-to-height ratio with reference ranges.
Open Calculator →Lean Body Mass (LBM)
Estimate lean body mass from entered body measurements.
Open Calculator →Body Surface Area (BSA)
Calculate body surface area from height and weight.
Open Calculator →VO2 Max Calculator
Estimate VO2 max from entered fitness measurements.
Open Calculator →Blood Pressure Chart Tool
Blood-pressure category estimate from systolic and diastolic readings.
Open Calculator →A1C to Blood Sugar
Convert HbA1c into an estimated average glucose value.
Open Calculator →Cholesterol Ratio Calculator
Calculate cholesterol ratios from entered lipid-panel values.
Open Calculator →MAP (Mean Arterial Pressure) Calculator
Estimate mean arterial pressure from systolic and diastolic readings.
Open Calculator →Baby Vaccination Schedule Calculator
Estimate vaccination dates from birth date and selected schedule information.
Open Calculator →Stress Level Test
Calculate a perceived-stress score from questionnaire responses.
Open Calculator →Intermittent Fasting Calculator
Plan daily fasting and eating windows from a time and hour split.
Open Calculator →Steps to Calories Calculator
Estimate walking calories from steps, weight, step length and pace.
Open Calculator →eGFR Calculator
Estimate adult eGFR with the race-free 2021 CKD-EPI creatinine equation.
Open Calculator →Creatinine Clearance Calculator (CRCL)
Estimate CrCl with Cockcroft–Gault and compare entered weight assumptions.
Open Calculator →Basal Body Temperature (BBT) Chart
Log dated temperatures, view a chart and save or restore a backup.
Open Calculator →Math & Utility Calculators
Everyday math, science, measurement and reliability calculations.Love Calculator
Try name and birthdate games, explore zodiac pairings, and compare photo resemblance. View separate scores and download your results—for entertainment only.
Open Calculator →Area Calculator
Calculate the area of nine shapes, view diagrams, and convert results between area units. Download a TXT or PDF summary.
Open Calculator →Metal Weight Calculator
Estimate weight for 12 metal profiles using dimensions, material density, and quantity. View weight per metre, per piece, and total weight.
Open Calculator →Incognito Scientific Calculator
Perform scientific calculations in degree or radian mode, review calculation history, and save password-encrypted notes in your browser.
Open Calculator →MTBF & MTTR Calculator
Log uptime and downtime to calculate MTBF, MTTR, and availability. Review an event timeline and download your results.
Open Calculator →Exponent Calculator
Calculate powers with positive, negative, or fractional exponents. View scientific notation, a power table, and a chart, then export TXT or CSV results.
Open Calculator →Electrical Calculator
Calculate voltage, current, AC power and energy use, or estimate solar panel output and panel count. View diagrams, formulas and worked results.
Open Calculator →Height Comparison Tool
See how family members, friends or characters measure up side by side. Personalise the figures and compare everyone on one shared height scale.
Compare Heights →From Input to Result
Choose a calculator, enter your values and review the result directly in your browser.
Choose the Right Calculator
Pick the calculator that matches your task from the full collection.
Enter Your Values
Amounts, marks, weight or dimensions — fill the inputs for your situation.
Review the Result
See the breakdown on screen and adjust inputs to compare scenarios.
Copy or Note It
Use the result for planning, discussion or documentation as needed.
Find the Right Calculator for Your Task
Match your task to the right calculator and see exactly what you'll get.
| I Want To... | Calculator To Use | What You'll Get |
|---|---|---|
|
Know my monthly EMI before taking a loan Home, car or personal loan. |
EMI Calculator → | Monthly EMI + total interest + schedule |
|
Add or remove GST on an invoice Any slab: 5, 12, 18, 28%. |
GST Calculator → | Taxable amount, GST, final price |
|
Plan monthly mutual fund investing See long-term compound growth. |
SIP Calculator → | Invested, returns, maturity corpus |
|
Compare old vs new tax regime With my salary and deductions. |
Income Tax Calculator → | Tax liability under both regimes + estimated difference |
|
Check my weight category From height and weight. |
BMI Calculator → | BMI value + category + reference range |
|
Know how many classes I can miss Stay above the required attendance. |
Attendance Calculator → | Current % + miss/attend count |
|
Get my CGPA and percentage Across all semesters. |
CGPA Calculator → | CGPA + % + letter grade |
|
Get daily calories for weight loss Based on my body stats. |
Calorie Calculator → | Calorie target by goal |
|
Know my pregnancy due date From last menstrual period. |
Due Date Calculator → | Due date + week + trimester |
|
Calculate area of a plot or room Any shape with units. |
Area Calculator → | Calculated area with unit conversion |
Calculators for Real-World Tasks
Use calculators for common planning, estimation and comparison tasks across finance, study, health and everyday math.
Salary & Tax Planning
Compare tax scenarios, estimate HRA-related amounts and explore gratuity calculations for employment planning.
Home Buyers & Owners
Work out EMI estimates, amortisation schedules and compare the long-term costs of renting versus buying.
Students & Parents
Track CGPA and GPA, keep attendance above the required threshold and plan semesters.
Investing & Retirement Planning
Explore SIP and SWP scenarios, calculate CAGR and estimate PPF, NPS and SCSS values for retirement planning.
Fitness & Nutrition Planning
Check BMI, set calorie and macro targets and track water intake for everyday fitness and nutrition planning.
Expecting Parents
Explore pregnancy dates, trimester milestones and baby-growth or vaccination-related estimates using the relevant inputs.
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Calculation Tools FAQ
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Choose the Right Calculator for Your Task
Search the collection by name or browse by category to find the calculator that fits your task.