🧮 Calculators

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Percentage Calculator

Free online percentage calculator. Compute what is X% of Y, X is what percentage of Y, and calculate percentage increase or decrease with step-by-step formulas.

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GST / Sales Tax Calculator

Calculate Goods and Services Tax (GST) and sales tax. Easily calculate GST inclusive and GST exclusive amounts, tax breakdowns, CGST, and SGST.

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EMI & Loan Calculator

Calculate Equated Monthly Installment (EMI) for home loans, auto loans, and personal loans. Get instant monthly payment, total interest, and total payable amounts.

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Compound Interest Calculator

Free compound interest calculator. Calculate future investment value, interest earned, and compound growth with annual, quarterly, or monthly compounding.

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Simple Interest Calculator

Calculate simple interest (SI = P × R × T / 100) on loans and investments. Get instant interest amounts and total maturity values.

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Mortgage Calculator

Estimate monthly mortgage payments including principal, interest, property tax, and home insurance. Calculate 15-year and 30-year fixed home loans.

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SIP Calculator (Systematic Investment Plan)

Calculate returns on your monthly Mutual Fund SIP investments. Estimate total wealth accumulated, invested amount, and estimated capital gains.

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ROI Calculator (Return on Investment & CAGR)

Calculate Return on Investment (ROI), total profit percentage, and Compound Annual Growth Rate (CAGR) for stocks, real estate, and business ventures.

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Salary & Hourly Pay Calculator

Convert hourly wage to annual salary, monthly pay, bi-weekly paycheck, and weekly earnings. Adjust for hours worked per week and paid vacation days.

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Inflation & Purchasing Power Calculator

Calculate the impact of inflation on your money. Find out how much today’s money will be worth in the future and how much purchasing power is lost.

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Discount & Sale Price Calculator

Find the final discounted price and see how much you save on sales, promotions, and store discounts with optional sales tax calculation.

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Tip & Bill Splitter Calculator

Calculate restaurant tip amounts and split dinner bills evenly among friends and group members in seconds.

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Date & Age Calculator

Calculate your exact age in years, months, weeks, days, hours, and minutes from your birth date. Includes upcoming birthday countdown.

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BMI & Health Calculator

Calculate your Body Mass Index (BMI) using Metric (kg/cm) or Imperial (lbs/inches) units and view WHO healthy weight ranges.

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Fraction Calculator (Add, Subtract, Multiply, Divide)

Perform arithmetic on fractions: addition, subtraction, multiplication, division, fraction simplification, mixed numbers, and decimal conversion.

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Scientific & Mathematical Calculator

Free full-featured online scientific calculator with trigonometric functions (sin, cos, tan), logarithms (log, ln), square roots, powers, and factorials.

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Statistics & Data Analysis Calculator

Calculate descriptive statistics for any data set: Mean (Average), Median, Mode, Standard Deviation, Variance, Min, Max, Range, and Quartiles (IQR).

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Quadratic Equation Solver (ax² + bx + c = 0)

Solve quadratic equations ax² + bx + c = 0. Computes discriminant, real and complex roots, parabola vertex coordinates, and axis of symmetry.

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GCD & LCM Calculator (Greatest Common Divisor)

Find the Greatest Common Divisor (GCD/GCF/HCF) and Least Common Multiple (LCM) for two or more numbers using Euclidean algorithm.

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Aspect Ratio Calculator & Resolution Scaler

Calculate aspect ratios (16:9, 4:3, 1:1, 21:9) and scale image or video dimensions proportionally while preserving aspect ratio.

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Sleep Cycle & Optimal Bedtime Calculator

Calculate the best times to fall asleep or wake up refreshed based on natural 90-minute REM sleep cycles and average sleep latency.

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Profit Margin & Markup Calculator

Calculate gross profit, profit margin percentage, and markup percentage from item cost and selling price for business pricing.

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Freelance Hourly Rate & Billable Hours Calculator

Calculate your minimum freelance hourly rate and day rate based on desired take-home salary, billable hours, business overhead, and taxes.

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Working Days & Date Difference Calculator

Calculate total working business days between two dates, automatically excluding Saturdays and Sundays for project planning.

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Calorie, BMR & TDEE Daily Energy Calculator

Calculate your Basal Metabolic Rate (BMR) and Total Daily Energy Expenditure (TDEE) using the Mifflin-St Jeor formula for weight maintenance or loss.

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Add or Subtract Days to Date Calculator

Calculate future or past dates by adding or subtracting days, weeks, months, or years from any starting date with business day exclusions.

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Download & Upload Time Estimator Calculator

Calculate how long it takes to download or upload a file based on your internet connection speed (Mbps, Gbps, MB/s) and file size (GB, TB, MB).

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Unit Price Comparison Calculator

Compare prices of different product packages and sizes to find the best deal. Calculates unit cost per ounce, gram, pound, liter, or item.

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Credit Card Payoff & Debt Snowball Calculator

Calculate how long it will take to pay off credit card debt. See monthly payment schedules, total interest charges, and payoff date estimates.

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Car Depreciation & Resale Value Calculator

Estimate your vehicle depreciation rate and resale value year-by-year (1 to 10 years). Understand vehicle value retention for new and used cars.

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Electricity Bill & Appliance Energy Cost Calculator

Calculate the cost to run any electrical appliance (AC, heater, PC, TV, EV charger). Estimates daily, monthly, and yearly power bill costs in kWh.

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Gas Mileage & Trip Fuel Cost Calculator

Calculate total fuel cost, gallons/liters needed, and cost per passenger for any road trip or daily commute based on distance, MPG, and gas price.

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Permutation & Combination (nPr, nCr) Calculator

Calculate permutations (nPr) and combinations (nCr) online. Includes step-by-step mathematical formulas, factorial expansions, and repetition modes.

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Matrix Operations Calculator (Add, Multiply, Det, Inverse)

Perform matrix arithmetic online: 2x2 and 3x3 matrix addition, subtraction, matrix multiplication, determinant, transpose, and matrix inverse.

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Triangle Solver (Angles, Sides, Area & Perimeter)

Solve any triangle (Right, SSS, SAS, ASA, AAS) given 3 known sides or angles. Calculates all remaining sides, angles, area (Heron's formula), and perimeter.

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Circle & Sphere Geometry Calculator

Calculate circle area, circumference, radius, diameter, and 3D sphere surface area and volume from any single known dimension with step-by-step formulas.

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Income Tax Calculator (FY 2024-25 & 2025-26)

Free online Income Tax Calculator for FY 2024-25 and FY 2025-26 (AY 2025-26 & AY 2026-27). Compare Old vs New Tax Regime with standard deduction, 80C, 80D, HRA and Section 87A rebate.

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Loan Calculator & Payment Planner

Calculate monthly loan payments, interest breakdown, and amortization schedule with prepayment savings for personal, car, and home loans.

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UPI MDR Charges & Interchange Fee Calculator

Calculate merchant MDR fees, GST, and net payout under the 15 October 2026 UPI framework (0.4% above ₹2,000 capped at ₹300, ₹0 for P2P/small merchants).

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UPI Group Bill Splitter & WhatsApp Collect Generator

Split restaurant, travel, and group bills with friends. Generates individual UPI QR codes and 1-click WhatsApp payment request links with live settlement tracker.

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Loan Amortization & Extra Payment Calculator

Calculate your monthly loan amortization schedule with extra prepayments. See interest saved, payoff term reduction, and download yearly/monthly schedules.

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SIP Step-Up & Top-Up Calculator

Calculate compounding wealth creation with annual step-up SIP investments. See returns with yearly percentage increments or fixed top-up contributions.

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Fuel Mileage & Trip Cost Splitter

Calculate fuel economy (km/L, MPG, L/100km), total trip gas cost, cost per km/mile, and split travel expenses among passengers with toll & round-trip options.

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US Sales Tax Calculator (All 50 States)

Free online US Sales Tax Calculator. Compute state, county, and local city sales tax across California, Texas, Florida, New York, and all 50 US states with add/remove tax toggle.

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Income Tax Calculator India (New vs Old Regime)

Calculate your Indian Income Tax for FY 2024-25 (AY 2025-26) and FY 2025-26 under Sec 115BAC New Tax Regime vs Old Tax Regime. Compare deductions (80C, 80D, HRA) and find tax savings.

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UK VAT Calculator (20% & 5%)

Free HMRC-compliant UK VAT calculator. Add 20% standard rate or 5% reduced rate VAT to net prices, or extract VAT from gross invoice amounts instantly.

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Australia GST Calculator (ATO 10%)

Free ATO-compliant Australian GST Calculator. Add 10% GST to price or extract GST component from inclusive totals for Business Activity Statements (BAS) and tax invoices.

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UAE End of Service Gratuity Calculator

Calculate your UAE End of Service Gratuity under Federal Decree-Law No. 33 of 2021. Accurate calculation for limited contracts, resignation, and termination with statutory caps.

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German MwSt / VAT Calculator (19% & 7%)

Kostenloser Mehrwertsteuerrechner für Deutschland. Berechnen Sie 19% Regelsteuersatz und 7% ermäßigten Steuersatz — Netto zu Brutto und Brutto zu Netto schnell und einfach.

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401(k) & Roth IRA Retirement Wealth Calculator

Calculate your future 401(k) balance at retirement age. Account for employee contributions, employer match, annual salary growth, compound returns, and inflation.

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Hourly to Salary Paycheck Converter

Convert hourly wage to annual salary, monthly income, bi-weekly paycheck, and weekly earnings. Adjust for 40-hour workweeks, paid time off (PTO), and overtime hours.

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EPF & PPF Maturity Calculator (India)

Calculate PPF (7.1%) and EPF (8.25%) maturity corpus, monthly interest accumulation, and tax-free retirement wealth with annual salary increments and compounding schedules.

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UK Salary Tax & Take-Home Pay Calculator

Calculate your UK net take-home pay after PAYE Income Tax, Class 1 National Insurance, workplace pension, and Student Loan deductions for the 2024/25 tax year.

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Australia Superannuation Guarantee Calculator

Calculate your Australian Superannuation balance at retirement age 65. Models 11.5% and 12% Super Guarantee (SG), voluntary contributions, 15% super tax, and investment earnings.

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German Gross to Net Salary Estimator (Brutto-Netto)

Berechnen Sie Ihr Nettogehalt in Deutschland für 2024 / 2025. Ermittelt Lohnsteuer, Rentenversicherung, Krankenversicherung, Pflegeversicherung und Solidaritätszuschlag nach Steuerklasse.

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APR to APY Interest Rate Converter

Convert nominal APR to effective annual APY (and APY to APR). Calculate real interest yield and cost with daily, monthly, quarterly, semi-annual, and continuous compounding.

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HRA Tax Exemption Calculator (India Sec 10(13A))

Calculate your House Rent Allowance (HRA) tax exemption under Section 10(13A) of the Indian Income Tax Act. Supports Metro (50%) and Non-Metro (40%) rules with 3 statutory conditions.

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NPS Pension & Annuity Wealth Calculator (India)

Calculate your National Pension System (NPS) maturity corpus at age 60, 60% tax-free lump sum withdrawal, and 40% mandatory annuity monthly pension payout.

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UK Stamp Duty Land Tax (SDLT) Calculator

Calculate Stamp Duty Land Tax (SDLT) on residential property purchases in England and Northern Ireland. Includes First-Time Buyer relief, moving home rates, and +3% additional property surcharge.

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College & High School GPA Calculator

Free online GPA calculator. Calculate cumulative and semester Grade Point Average on a 4.0 standard scale, weighted for Honors, AP, and IB courses. Supports custom credit hours and grade points.

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Car Loan & Auto Financing Calculator

Calculate monthly car loan payments, total interest, sales tax, and dealer fees. Factor in cash down payments, vehicle trade-in allowances, and loan terms from 36 to 84 months.

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Ovulation & Fertile Window Calculator

Calculate your estimated ovulation date, peak fertile window, and next menstrual cycle. Enter your last period date and cycle length to find the best days to conceive.

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Pregnancy Due Date & Trimester Calculator

Calculate your estimated pregnancy due date (EDD) using Naegele’s rule. View gestational age in weeks and days, current trimester progress, and fetal milestone dates.

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Body Fat Percentage Calculator (US Navy Method)

Calculate body fat percentage and lean muscle mass using the official US Navy circumference method (Neck, Waist, Hip, Height). Accurate fitness category breakdown.

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Macro Nutrient & Calorie Split Calculator

Calculate your daily macronutrient targets in grams. Splits Protein, Carbohydrates, and Fats for fat loss (cutting), muscle gain (bulking), ketogenic, and balanced diets.

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Overtime & Double-Time Paycheck Calculator

Calculate your overtime paycheck under FLSA rules. Compute regular wages, 1.5x time-and-a-half overtime, 2.0x double-time pay, and blended effective hourly rate.

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Sample Size & Margin of Error Calculator

Calculate statistically significant sample sizes for surveys, market research, and academic experiments using Cochran’s formula with 90%, 95%, and 99% confidence levels.

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