Trending Calculators
A hand-picked list of the calculators we think most people land here looking for — covering everyday money, health, and math decisions.
Trending now
Age Calculator
Calculate your exact age in years, total months, and total days from any date of birth — accurate down to the day.
Attendance Calculator
Classes you can skip safely.
BMI Calculator
Calculate your Body Mass Index in seconds — with WHO categories and Asian-specific cutoffs.
Calorie Calculator
Daily calorie needs to maintain, lose, or gain weight — based on your BMR and activity level.
Compound Interest Calculator
See how a one-time principal grows under compound interest at any rate, tenure, and compounding frequency (daily, monthly, quarterly, yearly).
Crypto Profit Calculator
Calculate profit, loss, and percent return on any crypto trade — Bitcoin, Ethereum, or altcoins — from buy price, sell price, and quantity.
Crypto Tax Calculator
Estimate capital gains tax on crypto.
Currency Converter
Convert between 30 major world currencies instantly with reference rates — see the converted amount, exchange rate, and inverse rate.
Customer LTV
Lifetime value of a customer.
Discount Calculator
Get the final price and amount saved after any percentage discount — also handles stacked discounts and reverse-calculates the original price.
EMI Calculator
Calculate Equated Monthly Instalments for home, personal, car, and education loans — with interest split and total payable.
Fuel Cost Calculator
Trip fuel cost from distance and MPG.
GPA Calculator
Calculate your semester GPA on the 4.0 scale — weighted by credit hours, with the standard letter-to-GPA conversion table.
Grade Calculator
Weighted grade for assignments & exams.
In-Hand Salary Calculator
Turn a CTC offer into the amount that actually reaches your bank account — PF, professional tax by state, and income tax under both regimes, for FY 2025-26 (AY 2026-27).
Old vs New Tax Regime Calculator
Which regime leaves you with more money, for FY 2025-26 (AY 2026-27) — with the break-even deduction figure that decides it.
Percentage Calculator
Find X% of a number, percentage increase, percentage decrease, and percent difference — all in one tool.
Profit Margin
Gross and net profit margins.
ROI Calculator
Compute Return on Investment as a percentage from initial cost and gain — for marketing campaigns, real estate, or any business project.
Scientific Calculator
A full scientific calculator in your browser — trig in degrees or radians, logarithms, powers, roots, factorials, and memory keys with proper order of operations.
SIP Calculator
Project the future value of a Systematic Investment Plan — see how a fixed monthly contribution compounds over years.
Staking Rewards
Project staking rewards over time.
TDEE Calculator
Estimate your total daily energy expenditure (TDEE) from age, sex, height, weight, and activity level using the Mifflin-St Jeor equation.
Tip Calculator
Split a restaurant bill fairly with tip — get tip amount, total, and per-person share for any group size.
Unit Converter
Convert between metric and imperial.
Water Intake
Daily water needs based on weight & activity.
Featured calculators
Ad ROAS Calculator
Return on ad spend.
Age Calculator
Calculate your exact age in years, total months, and total days from any date of birth — accurate down to the day.
AKTU CGPA to Percentage Calculator
Convert your AKTU (UPTU) CGPA to a percentage using the (CGPA − 0.75) × 10 rule from the B.Tech ordinance, and see which division that puts you in.
Anna University CGPA to Percentage Calculator
Convert Anna University CGPA to a percentage. Anna University uses a straight CGPA × 10 with no deduction — this shows exactly what that means for your marks.
Assignment Weight
Effect of assignment on final grade.
Attendance Calculator
Classes you can skip safely.
Average Calculator
Mean of multiple numbers.
Binary Converter
Convert between binary, decimal, hex.
Bitcoin Mining Calculator
Estimate Bitcoin mining profitability.
BMI Calculator
Calculate your Body Mass Index in seconds — with WHO categories and Asian-specific cutoffs.
BMR Calculator
Calculate your Basal Metabolic Rate — the calories your body burns at complete rest.
Body Fat %
Estimate body fat percentage.
BPUT CGPA to Percentage Calculator
Convert BPUT (Odisha) CGPA to a percentage using the (CGPA − 0.5) × 10 rule, with your resulting class or division.
Break-Even Calculator
Units to sell to cover costs.
CAGR Calculator
Compound annual growth rate.
Calorie Calculator
Daily calorie needs to maintain, lose, or gain weight — based on your BMR and activity level.
Calories Burned Calculator
Estimate calories burned for 20 common activities from your weight and workout duration using research-based MET values.
Carpet & Tile Calculator
Flooring area and boxes needed.
CBSE CGPA to Percentage Calculator
Convert your CBSE CGPA to a percentage with the official × 9.5 multiplier, including the A1–E grade table used on the Class 10 and 12 marksheet.
CGPA Calculator
Calculate cumulative GPA across semesters.