All Calculators
127 tools organized by category. Jump to any section.
Finance
Loans, investments, taxes, and money · 35 tools
Currency Converter
Convert between 30 major world currencies instantly with reference rates — see the converted amount, exchange rate, and inverse rate.
EMI Calculator
Calculate Equated Monthly Instalments for home, personal, car, and education loans — with interest split and total payable.
SIP Calculator
Project the future value of a Systematic Investment Plan — see how a fixed monthly contribution compounds over years.
Compound Interest Calculator
See how a one-time principal grows under compound interest at any rate, tenure, and compounding frequency (daily, monthly, quarterly, yearly).
Mortgage Calculator
Calculate monthly mortgage payments — principal and interest split, total interest paid, and full payment schedule.
Loan Eligibility Calculator
Find out how much loan you can qualify for.
Income Tax Calculator
Estimate your Indian income tax under the new and old regimes for FY 2025-26 (AY 2026-27).
Retirement Calculator
Plan how much you need to retire comfortably.
Fixed Deposit Calculator
Calculate maturity value of fixed deposits.
Recurring Deposit Calculator
Calculate returns on monthly recurring deposits.
Mutual Fund Returns
Calculate returns on lump sum MF investments.
Stock Profit/Loss
Calculate gains or losses on stock trades.
Dividend Yield Calculator
Calculate annual dividend yield on a stock.
Credit Card Interest
How much credit card interest will cost you.
Debt Payoff Calculator
Plan when you will be debt-free.
Net Worth Calculator
Calculate your total net worth.
Salary to Hourly
Convert annual salary to hourly rate.
Tip Calculator
Split a restaurant bill fairly with tip — get tip amount, total, and per-person share for any group size.
GST Calculator
Calculate GST inclusive & exclusive amounts.
PPF Calculator
Calculate Public Provident Fund maturity.
NPS Calculator
Plan your National Pension Scheme returns.
Lumpsum Calculator
Project the future value of a one-time mutual fund or equity lumpsum investment.
HRA Calculator
Calculate exempt and taxable HRA under Section 10(13A) — old regime tax saving on house rent.
CIBIL Score Estimator
Estimate where your CIBIL score sits based on credit habits — utilisation, payment history, account age, and inquiries.
Paycheck Calculator
Estimate your take-home pay per paycheck after 2026 federal income tax, Social Security, Medicare, state tax, and pre-tax deductions.
Federal Income Tax Calculator
Estimate your 2026 federal income tax, marginal and effective rates, and see exactly how much of your income falls in each bracket.
Capital Gains Tax Calculator
Estimate 2026 federal tax on a stock, crypto, or property sale — short-term gains at ordinary rates vs long-term gains at 0%, 15%, or 20%.
Sales Tax Calculator
Add sales tax to a pre-tax price or extract the tax from a receipt total using 2026 state base rates for all 50 states plus DC — or any custom rate.
Auto Loan Calculator
Estimate your monthly car payment, total interest, and full amortization schedule from vehicle price, down payment, trade-in, sales tax, APR, and term.
Student Loan Calculator
Find your monthly student loan payment, total interest, and how much faster you pay off the loan — and how much interest you save — with extra monthly payments.
House Affordability Calculator
See how much house you can afford using the 28/36 rule — factoring in income, debts, down payment, mortgage rate, property tax, insurance, and HOA dues.
Inflation Calculator
See what an amount of money is worth across time at a chosen average annual inflation rate — project forward to 2076 or look back to 1950.
401(k) Calculator
Project your 401(k) balance at retirement with employer matching, salary growth, and 2026 IRS contribution limits applied year by year.
Roth IRA Calculator
Estimate your tax-free Roth IRA balance at retirement using 2026 contribution limits, your timeline, and expected investment returns.
Social Security Calculator
A simplified estimate of your monthly Social Security retirement benefit from career-average earnings and claiming age — not an official SSA projection.
Health
BMI, calories, fitness and wellness · 18 tools
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.
Calorie Calculator
Daily calorie needs to maintain, lose, or gain weight — based on your BMR and activity level.
Macro Calculator
Calculate protein, carbs, and fat ratios.
Body Fat %
Estimate body fat percentage.
Ideal Weight
Find your ideal weight based on height.
Water Intake
Daily water needs based on weight & activity.
Pregnancy Due Date
Estimate your baby's due date.
Ovulation Calculator
Find your fertile window.
Heart Rate Zone
Training zones based on age.
VO2 Max
Estimate aerobic fitness capacity.
Running Pace
Calculate running pace per km/mile.
One-Rep Max
Calculate your 1RM for any lift.
Sleep Cycle
Best bedtime based on wake time.
Age Calculator
Calculate your exact age in years, total months, and total days from any date of birth — accurate down to the day.
TDEE Calculator
Estimate your total daily energy expenditure (TDEE) from age, sex, height, weight, and activity level using the Mifflin-St Jeor equation.
Calories Burned Calculator
Estimate calories burned for 20 common activities from your weight and workout duration using research-based MET values.
Protein Intake Calculator
Find your daily protein target in grams from your body weight and training goal, with low/high ranges and a per-meal breakdown.
Math
Scientific, statistical, and calculus · 18 tools
Percentage Calculator
Find X% of a number, percentage increase, percentage decrease, and percent difference — all in one tool.
Fraction Calculator
Add, subtract, multiply & divide fractions.
Quadratic Equation
Solve ax² + bx + c = 0.
Statistics Calculator
Mean, median, mode, and std deviation.
Probability Calculator
Calculate event probability.
LCM & GCD Calculator
Find LCM and GCD of two numbers.
Logarithm Calculator
Calculate log base any.
Trigonometry
sin, cos, tan for any angle.
Binary Converter
Convert between binary, decimal, hex.
Ratio Calculator
Simplify and scale ratios.
Average Calculator
Mean of multiple numbers.
Factorial Calculator
Calculate n! for any number.
Prime Number Checker
Check if a number is prime.
Power / Exponent
Calculate base^exponent.
Square Root
Find square & cube roots.
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.
Random Number Generator
Generate fair, unbiased random numbers in any range you choose — both endpoints included. Perfect for raffles, giveaways, games, sampling, and quick decisions.
Percentage Change Calculator
Find the percentage increase or decrease between two numbers, with the direction of change and the exact difference shown instantly.
Crypto
Bitcoin, staking, DeFi and trading · 10 tools
Crypto Profit Calculator
Calculate profit, loss, and percent return on any crypto trade — Bitcoin, Ethereum, or altcoins — from buy price, sell price, and quantity.
Bitcoin Mining Calculator
Estimate Bitcoin mining profitability.
Ethereum Gas Calculator
Calculate gas fees in USD.
Staking Rewards
Project staking rewards over time.
DCA Calculator
Dollar-cost averaging over time.
Impermanent Loss
Calculate IL on LP positions.
Crypto Tax Calculator
Estimate capital gains tax on crypto.
NFT ROI Calculator
Calculate NFT return on investment.
Crypto Converter
Convert crypto to USD.
Portfolio Calculator
Track multi-coin portfolio value.
Engineering
Electrical, mechanical, and civil · 10 tools
Ohm's Law Calculator
V = IR, find voltage, current, or resistance.
Voltage Divider
Calculate output voltage for a divider.
Electrical Power
Calculate electrical power (P = VI).
Torque Calculator
Torque from force and lever arm.
Unit Converter
Convert between metric and imperial.
Concrete Calculator
Calculate concrete volume for slabs.
Pipe Flow Calculator
Flow rate through circular pipe.
Gear Ratio Calculator
Calculate gear ratios and output RPM.
RPM Calculator
Surface speed to RPM conversion.
Resistor Color Code
Resistance from 4-band color code.
Daily Life
Tips, travel, cooking and more · 16 tools
Fuel Cost Calculator
Trip fuel cost from distance and MPG.
Travel Time Calculator
Estimate travel time from distance & speed.
Date Difference
Days between two dates.
Split Bill Calculator
Split expenses fairly between people.
Cooking Conversion
Convert cups, tablespoons, grams.
Paint Calculator
Gallons of paint needed for a room.
Carpet & Tile Calculator
Flooring area and boxes needed.
Countdown Calculator
Time remaining until an event.
Gift Budget Calculator
Budget and split gift costs.
Quick Tip Calculator
Fast tip calculation for any bill.
Time Card Calculator
Add up your weekly work hours from daily clock-in/out times and breaks, with overtime at 1.5x after 40 hours — totals in both hh:mm and decimal hours.
Square Footage Calculator
Find the square footage of rectangles, circles, triangles, and border/frame areas — with square-meter conversion and an optional material cost estimate.
Love Calculator
Type two names to get a playful 0–100 compatibility score and a verdict — just for fun, with zero science involved.
Hours Calculator
Find the hours between a start and end time, subtract unpaid breaks, and handle overnight shifts — results in hh:mm and decimal hours.
Date Calculator
Add or subtract days, weeks, months, or years from any date — with an optional business-days mode that skips weekends.
Gas Mileage Calculator
Compute your real-world MPG from miles driven and gallons used — plus cost per mile, total trip fuel cost, and the metric L/100km equivalent.
Education
GPA, grades, and study tools · 10 tools
GPA Calculator
Calculate your semester GPA on the 4.0 scale — weighted by credit hours, with the standard letter-to-GPA conversion table.
CGPA Calculator
Calculate cumulative GPA across semesters.
Percentage to GPA
Convert percentage to 4.0 GPA.
Grade Calculator
Weighted grade for assignments & exams.
Exam Score Predictor
Score needed on final for target grade.
Study Hours Calculator
Weekly study hours for your courses.
Assignment Weight
Effect of assignment on final grade.
Class Rank Calculator
Your percentile in class.
Attendance Calculator
Classes you can skip safely.
Reading Speed
Words per minute reading speed.
Business
ROI, margins, and SaaS metrics · 10 tools
ROI Calculator
Compute Return on Investment as a percentage from initial cost and gain — for marketing campaigns, real estate, or any business project.
Break-Even Calculator
Units to sell to cover costs.
Profit Margin
Gross and net profit margins.
Markup Calculator
Selling price from cost and markup.
Discount Calculator
Get the final price and amount saved after any percentage discount — also handles stacked discounts and reverse-calculates the original price.
CAGR Calculator
Compound annual growth rate.
Payroll Calculator
Net pay after taxes & deductions.
Inventory Turnover
Efficiency of inventory management.
Customer LTV
Lifetime value of a customer.
Ad ROAS Calculator
Return on ad spend.