All Free Online Calculators (2026)
Explore 111 free calculators for money, taxes, health, home and everyday planning. Built for U.S., Indian, and global users. Fast, mobile-friendly and instant results.
Calculator Directory
Showing 111 calculators
Mortgage Calculator
Calculate your monthly mortgage payment including principal, interest, property taxes, ins
Income Tax Calculator
Estimate your 2025 federal income tax and effective tax rate in seconds.
BMI Calculator
Free BMI calculator for adults.
SIP Calculator
Free SIP calculator for Indian mutual fund investors.
EMI Calculator
Free EMI calculator for India.
Compound Interest Calculator
Free compound interest calculator.
Calorie Calculator
Free calorie calculator.
Salary Calculator
Free salary take-home pay calculator for 2025.
Self-Employment Tax Calculator
Free self-employment tax calculator for freelancers, 1099 contractors, and sole proprietor
Sales Tax Calculator
Calculate sales tax for any US state · 2025 state rates for all 50 states, reverse tax-inc
GST Calculator India
Free India GST calculator.
Land Loan Calculator
Calculate raw land, lot, and agricultural loan payments with down payment, APR, and balloo
Auto Loan Calculator
Free auto loan calculator for new and used cars.
Retirement Calculator
Free retirement calculator.
Percentage Calculator
Free percentage calculator with 5 modes: percent of a number, what percent is X of Y, perc
Word Counter
Count words, characters, sentences, and reading time in any text with keyword density anal
Window Replacement Cost Calculator
Free window replacement cost calculator.
Wedding Alcohol Calculator
Free wedding alcohol calculator.
Daily Water Intake Calculator
Find your personalized daily water intake in liters, ounces, and glasses · based on your w
Waist to Hip Ratio Calculator
Free waist to hip ratio calculator using WHO health risk standards.
Vehicle Wrap Calculator
Free vehicle wrap cost calculator.
Unit Converter
Instantly convert between any units · length, weight, temperature, area, volume, speed, an
Tree Removal Cost Calculator
Free tree removal cost calculator.
Tip Calculator
Free tip calculator.
Time Zone Converter
Convert time between any world time zones with DST accuracy · includes a 30-city world clo
Tank Volume Calculator
Calculate water tank, aquarium, or storage container volume instantly.
Stock Return Calculator
Calculate stock CAGR, total return, and dividend-reinvested value for any investment perio
Student Loan Payoff Calculator
Find your student loan payoff date and total interest · compare repayment plans and extra
Steel Weight Calculator
Calculate steel, iron, and metal weight for round bars, flat plates/MS sheets, hollow pipe
Sukanya Samriddhi Yojana (SSY) Calculator
Calculate your Sukanya Samriddhi Yojana maturity amount · annual/monthly deposit, 8.2% int
Square Footage Calculator
Calculate square footage for any room shape · rectangle, circle, triangle, or L-shape.
Solar Panel ROI Calculator
Best solar panel calculator for India (PM Surya Ghar subsidy ₹78,000, state-wise rates, IN
Social Security Benefits Calculator
Estimate your Social Security retirement benefit at any claiming age from 62 to 70.
Sleep Cycle Calculator
Find the best times to wake up or fall asleep · based on 90-minute sleep cycles so you wak
Simple Interest Calculator
Calculate simple interest and compare it with compound interest to see the power of compou
SGPA Calculator
Calculate SGPA from subject grades and credit hours on India's 10-point scale.
Savings Goal Calculator
Find out how much to save monthly to reach any financial goal · vacation, emergency fund,
Reverse Sales Tax Calculator
Find the original price before tax from a total amount.
Roth IRA Calculator
Project your Roth IRA balance at retirement with 2026 contribution limits ($7,000/$8,000 i
Resin Calculator
Calculate epoxy resin quantities for box, cylinder, hemisphere, and sphere molds — or surf
Rent vs Buy Calculator
Should you rent or buy? Find your break-even year and see which option saves more money.
Rent or Sell Calculator
Free rent or sell calculator.
Refinance Calculator
Free mortgage refinance calculator.
Reading Time Calculator
Estimate reading time for articles, books, and documents at different reading speeds.
Productivity Calculator
Free productivity calculator.
PPF Calculator
Free PPF calculator for India.
Pregnancy Calculator
Free pregnancy due date calculator.
Petrol vs EV India Cost Calculator
Compare petrol car vs EV total cost of ownership in India · fuel costs, EMI, maintenance,
Personal Loan Calculator
Free personal loan calculator.
Paycheck Calculator
Find your exact take-home pay after federal taxes, FICA, 401k, and benefits deductions.
Ovulation Calculator & Fertility Window
Calculate your ovulation date and 6-day fertile window · enter your last period date and a
Overtime Calculator
Free overtime calculator.
Old vs New Tax Regime Calculator India 2025-26
Compare Old vs New Tax Regime for FY 2025-26.
NSC Calculator
Calculate your NSC maturity value, total interest, and year-wise accrual at India Post's c
NPS Calculator
Free NPS calculator India.
Net Worth Calculator
Find your true net worth by totaling all your assets and subtracting every liability.
Negative Marking Calculator
Instantly calculate your net exam score after negative marking.
Mutual Fund Calculator
Calculate returns on SIP and lump sum mutual fund investments with LTCG tax and direct vs
Menu Pricing Calculator
Free restaurant menu pricing calculator.
Profit Margin Calculator
Calculate gross margin, net margin, markup, and selling price · essential for pricing any
Macro Calculator
Calculate your daily calorie needs (TDEE) and personalized macronutrient targets.
Lottery Tax Calculator
See exactly how much you'd take home from a lottery jackpot after the lump-sum reduction (
Loan Comparison Calculator
Compare up to 3 loans side by side · monthly payment, total interest, and the best deal.
Linear Feet Calculator
Free linear feet calculator for flooring, fencing, baseboard, and lumber.
Lease vs Buy Calculator
Find out whether leasing or buying a car makes more financial sense for you.
Lead Time Calculator
Calculate lead time for any project, order, or supply chain.
Job Offer Comparison Calculator
Compare two job offers on total compensation · salary, bonus, equity, benefits value, comm
Investment Calculator
Free investment return calculator.
Inflation Calculator
See how inflation affects the value of money over time and find the real cost of goods.
HSA Calculator
Calculate how much your HSA (Health Savings Account) saves in taxes each year and projects
Income Tax Calculator India (FY 2025-26)
Calculate your Indian income tax for FY 2025-26 under new and old regimes with all major d
HRA Calculator India
Free HRA calculator for India.
House Flip Calculator
Free house flip profit calculator.
Home Equity Calculator
Find out how much equity you've built in your home and how much you can borrow.
Home Affordability Calculator
Free home affordability calculator.
HELOC Calculator
Calculate your maximum HELOC credit line, interest-only draw period payments, and principa
Gratuity Calculator India
Free gratuity calculator for India.
Fuel Cost Calculator
Free fuel cost calculator for USA and India.
Freelance Rate Calculator
Find your minimum viable freelance rate · set your income goal, realistic billable hours,
GPA Calculator
Calculate semester and cumulative GPA instantly with any number of courses on a 4.0 or 5.0
FIRE Calculator
Calculate your FIRE (Financial Independence, Retire Early) number · the portfolio size nee
FD vs Mutual Fund vs RD Calculator India
Compare FD, SIP mutual fund, and RD returns side-by-side · after-tax maturity amount, infl
FD Calculator
Free FD calculator for India.
EV vs Gas Car Total Cost Calculator
Compare EV vs gas car true cost of ownership over any time horizon · including $7,500 fede
ESOP Tax Calculator India
Calculate India ESOP tax in two stages · perquisite tax at exercise (slab rate) and capita
Electricity Bill Calculator
Calculate your monthly electricity cost by appliance, compare US and India rates, and see
Early Car Payoff Calculator
Free early car payoff calculator.
DTI Calculator
Free DTI calculator.
DSCR Loan Calculator
Free DSCR loan calculator for real estate investors.
Debt Payoff Calculator
Add all your debts and compare the snowball vs avalanche payoff strategy · see which saves
Date Difference Calculator
Free date difference calculator.
DA Calculator
Calculate dearness allowance for central government employees.
Currency Converter
Convert between 50+ world currencies instantly · includes USD, EUR, GBP, INR, JPY, AED, CA
CTC to In-Hand Salary Calculator India
Convert your CTC to actual monthly take-home salary with full salary slip breakdown · PF,
Crypto Profit/Loss Calculator
Free crypto profit and loss calculator.
Credit Card Payoff Calculator
Calculate your credit card payoff date, total interest, and how much you can save by payin
Coffee Cost Calculator
Calculate your annual coffee spend and what it could be worth invested over 10–30 years ·
CGPA Calculator
Convert CGPA to percentage for CBSE, VTU, Anna University, KTU, and AKTU · or reverse.
CD Calculator
Find your CD maturity value, APY, and total interest for any term length and compounding f
Carbon Footprint Calculator
Calculate your personal annual carbon footprint across 4 categories: transport, flights, h
Capital Gains Tax Calculator
Free capital gains tax calculator for 2025.
Break-Even Calculator
Free break-even calculator for businesses.
Business Loan Calculator
Free business loan calculator.
Body Fat Calculator
Free body fat percentage calculator.
Blended Rate Calculator
Free blended rate calculator.
Bill Split Calculator
Split any bill between friends · add tip and tax, assign individual items to specific peop
Audiobook Calculator
Free audiobook calculator.
Age Calculator
Free age calculator.
AI API Cost Calculator
Compare AI API costs across GPT-4o, Claude, Gemini, Mistral and more · find the cheapest m
Attendance Calculator
Calculate your class attendance percentage instantly.
401(k) Early Withdrawal Calculator
Find out the true cost of withdrawing from your 401(k) early.