All calculators
288+ free MyCalcsWorld tools with how-to steps, worked examples, formula notes, and FAQs on every page. Pick a category or search.
Featured
Mortgage Calculator
Estimate monthly principal & interest for a fixed-rate mortgage or home loan — with full amortization chart and year-by-year table (classic EMI / amortizing loan math).
FinanceLoan / EMI Calculator
Calculate EMI for personal, auto, or home loans worldwide with interest breakdown, chart, and yearly schedule.
FinanceCompound Interest Calculator
See how money grows with compound interest over time.
FinanceROI Calculator
Measure return on investment as gain and percentage.
FinanceCurrency Converter
Convert between USD, EUR, GBP, INR, JPY, AED and more using periodically refreshed FX rates.
FinanceRetirement Nest Egg (Simple)
Project retirement savings with regular monthly contributions.
FinanceCompounding Calculator
Compare continuous vs n-times-per-year compounding, effective annual rate, and a year-by-year growth schedule.
FinanceSIP / Recurring Investment
Project SIP / recurring investment maturity with invested-vs-portfolio chart — useful for mutual funds and global DCA.
FinanceDaily Compound Interest Calculator
Project daily compounding with daily or annual rates, optional reinvest %, deposits, and business-day filtering — plus balance chart and snapshots.
Popular
Mortgage Calculator
Estimate monthly principal & interest for a fixed-rate mortgage or home loan — with full amortization chart and year-by-year table (classic EMI / amortizing loan math).
FinanceLoan / EMI Calculator
Calculate EMI for personal, auto, or home loans worldwide with interest breakdown, chart, and yearly schedule.
FinanceCompound Interest Calculator
See how money grows with compound interest over time.
FinancePercentage Calculator
Quick percentage of a number — useful for tips, discounts, and taxes.
FinanceTip Calculator
Calculate tip amount and per-person split for dining out.
FinanceDiscount Calculator
Find the sale price and savings from a percent-off discount.
FinanceCurrency Converter
Convert between USD, EUR, GBP, INR, JPY, AED and more using periodically refreshed FX rates.
FinanceCompounding Calculator
Compare continuous vs n-times-per-year compounding, effective annual rate, and a year-by-year growth schedule.
FinanceSIP / Recurring Investment
Project SIP / recurring investment maturity with invested-vs-portfolio chart — useful for mutual funds and global DCA.
FinanceCAGR Calculator
Compound annual growth rate between a beginning and ending value.
FinanceDaily Compound Interest Calculator
Project daily compounding with daily or annual rates, optional reinvest %, deposits, and business-day filtering — plus balance chart and snapshots.
MathBasic Calculator
Add, subtract, multiply, and divide two numbers.
Finance
75 tools
- 401(k) Contribution Growth
- Add / Remove Sales Tax
- Amortization Chart
- Amortization Schedule
- APR to APY Converter
- APR vs APY Comparator
- Auto Lease Payment Estimator
- Balloon Loan Calculator
- Biweekly Mortgage Calculator
- Bond Yield Calculator
- Break-Even Calculator
- Budget Percentage Calculator
- CAGR Calculator
- Capital Gains Tax (Rough)
- Car Loan Calculator
- CD / APY Calculator
- Closing Cost Estimate
- Compound Growth 3D Bars
- Compound Interest Calculator
- Compounding Calculator
- Credit Card Payoff Calculator
- Credit Utilization Calculator
- Currency Convert (Manual Rate)
- Currency Converter
- Daily Compound Interest Calculator
- Debt Payoff Calculator
- Debt-to-Income Ratio
- Discount Calculator
- Dividend Yield Calculator
- Down Payment Calculator
- Effective Interest Rate
- EMI with Extra Payments
- Forex Position Size Calculator
- Future Value of Annuity
- GST / VAT Calculator
- GST Invoice Split Calculator
- HELOC Payment Estimator
- Inflation Adjuster
- Inflation Calculator
- Interest-Only Mortgage Calculator
- Investment Return Calculator
- IRA Contribution Room
- Lease vs Buy Calculator
- Loan / EMI Calculator
- Loan Affordability Calculator
- Mortgage Calculator
- Mortgage Points Calculator
- Net Worth Calculator
- NPV Calculator (Simple)
- P/E Ratio Calculator
- Paycheck / Tax Rough Estimator
- Percentage Calculator
- Present Value Calculator
- Property Tax Estimate
- Refinance Calculator
- Rent Affordability Calculator
- Rent vs Buy Calculator
- Retirement Nest Egg (Simple)
- Risk / Reward Ratio Calculator
- ROI Calculator
- Rule of 72
- Salary After Tax (illustrative slabs)
- Salary After Tax (US Rough)
- Salary Hike Calculator
- Sales Tax Calculator
- Savings Goal Calculator
- Savings Rate Calculator
- Simple Interest Calculator
- SIP / Recurring Investment
- SIP Growth Chart
- Stacked Discount Calculator
- Stock Average Cost Calculator
- Student Loan Payoff Calculator
- Tip + Tax + Split Mega
- Tip Calculator
Math
55 tools
- 2×2 Matrix Determinant
- 3D Cylinder Geometry
- 3D Distance Calculator
- 3D Function Plotter
- 3D Pythagoras / Space Diagonal
- 3D Sphere Geometry
- Age Calculator
- Angle Converter (Deg ↔ Rad)
- Arithmetic Sequence Term
- Average / Mean / Median / Mode
- Base Converter
- Basic Calculator
- Binomial Probability Calculator
- Circle Calculator
- Complex Number Calculator
- Cone Volume Calculator
- Cylinder Calculator
- Distance Formula Calculator
- Exponent Calculator
- Factorial Calculator
- Fibonacci nth Term
- Fraction Calculator
- GCF / LCM Calculator
- Geometric Sequence Term
- Logarithm Calculator
- Matrix Multiply 2×2
- Matrix Multiply 3×3
- Multi-Step Percentage Change
- Nth Root Calculator
- Numeric Derivative
- Numeric Integral
- Percentage Calculator (Mega)
- Percentage Change
- Percentage Of
- Permutation & Combination
- Prime Number Checker
- Pyramid Volume Calculator
- Pythagoras Theorem Calculator
- Quadratic Equation Solver
- Radians ↔ Degrees
- Ratio Calculator
- Rectangle Area & Perimeter
- Roman Numerals Converter
- Scientific Calculator
- Scientific Notation Converter
- Series Sum Calculator
- Significant Figures Rounder
- Simple Graphing Calculator
- Slope Calculator
- Sphere Volume & Surface
- Trapezoid Area Calculator
- Triangle Area (Heron's Formula)
- Triangle Sides & Angles Solver
- Unit Circle Calculator
- Vector Magnitude Calculator
Health & Fitness
30 tools
- BAC Rough Estimate (Widmark)
- Blood Pressure Category
- BMI Calculator
- BMR Calculator
- Body Fat (U.S. Navy)
- Body Recomp Calories
- Body Surface Area (Mosteller)
- Calorie / TDEE Calculator
- Calories Burned (MET)
- Heart Rate Zones Calculator
- Ideal Body Weight (Multiple Formulas)
- Ideal Weight Calculator
- Intermittent Fasting Window
- Macro Calculator
- Macros by Goal
- One-Rep Max Calculator
- Pace ↔ Speed Converter
- Pregnancy Due Date
- Pregnancy Week Tracker
- Pregnancy Weight by Week
- Pregnancy Weight Gain Estimate
- Protein Need Calculator
- Running Cadence Estimator
- Running Pace Calculator
- Sleep Cycle Calculator
- Steps to Miles & Calories
- Target Heart Rate Calculator
- VO₂ Max Estimate
- Waist–Hip Ratio
- Water Intake Calculator
Conversion
15 tools
Date & Time
12 tools
Everyday Life
46 tools
- AC BTU Calculator
- Board Feet Calculator
- Commute Cost Calculator
- Concrete Bags Calculator
- Concrete Volume Calculator
- Cooking Unit Converter
- Decking Boards Calculator
- Drywall Sheets Calculator
- Everyday Tip Helper
- Fence Posts Calculator
- Flooring Cost Calculator
- Fuel Cost Calculator
- Fuel vs EV Cost
- GPA Calculator
- Grade Percentage Calculator
- Grams ↔ Cups (by ingredient)
- Gravel / Aggregate Tonnage
- Gravel / Mulch Calculator
- Grocery Budget per Person
- HVAC Tonnage (Rough Rule)
- Insulation R-Value Layers
- Lumber Linear Feet
- Moving Boxes Estimator
- Oven Temperature Converter
- Pace (min/km) Helper
- Paint Coverage Calculator
- Parking Fee Calculator
- Password Entropy Estimator
- Password Strength Checker
- Random Number Generator
- Recipe Scaler
- Roof Pitch Calculator
- Simple Carbon Footprint
- Split Bill Calculator
- Square Footage Calculator
- Stair Stringer (Rough)
- Subscription Cost Rollup
- Tile Calculator
- Time to Decimal Hours
- Time Zone Difference
- Tip + Tax + Split
- Tip + Tax Combo
- Tip by Country
- Uneven Bill Split
- Unit Price Calculator
- Wallpaper Rolls Calculator
Science & Engineering
28 tools
- Acceleration Calculator
- Capacitor Energy Calculator
- Capacitor Series / Parallel
- Density Calculator
- Density Calculator
- Doppler Shift Calculator
- Electrical Power (P = VI)
- Electrical Power Calculator
- Force (F = ma)
- Freefall Calculator
- Half-Life Calculator
- Ideal Gas Law Solver
- Kinetic Energy Calculator
- Momentum Calculator
- Ohm's Law Calculator
- Ohm's Law Solver
- Ohm's Law Triangle
- Pressure Calculator
- Projectile Motion Calculator
- Resistor Series / Parallel
- Snell's Law Calculator
- Speed / Distance / Time
- Thin Lens Equation
- Velocity Calculator
- Wavelength ↔ Frequency
- Wavelength Calculator
- Wire Gauge (Rough)
- Work & Kinetic Energy
Business
9 tools
Education
6 tools
Statistics
8 tools