Free Online Calculators

Mortgage Calculator

Calculate monthly house loan payments.

Loan Calculator

General loan payment & terms estimator.

Auto Loan Calculator

Estimate vehicle financing & payments.

Interest Calculator

Calculate accrued simple & compound interest.

Payment Calculator

Determine monthly payment schedules.

Retirement Calculator

Plan savings needed for retirement.

Amortization Calculator

View detailed principal & interest schedules.

Investment Calculator

Calculate returns on investment portfolios.

Currency Calculator

Convert foreign exchange values.

Inflation Calculator

Evaluate purchasing power over time.

Finance Calculator

Comprehensive financial problem solver.

Mortgage Payoff Calculator

Determine early mortgage payoff savings.

Income Tax Calculator

Estimate income tax liabilities.

Compound Interest Calculator

Project compound interest growth.

Salary Calculator

Convert hourly wage to annual salary.

401K Calculator

Project 401(k) retirement growth.

Interest Rate Calculator

Find real interest rates on debt.

Sales Tax Calculator

Add or subtract local sales tax.

House Affordability Calculator

Estimate how much home you can afford.

Savings Calculator

Plan regular deposits and interest.

Rent Calculator

Determine affordable monthly rent.

Marriage Tax Calculator

Estimate marital tax penalty or bonus.

Estate Tax Calculator

Calculate estate and inheritance liabilities.

Pension Calculator

Estimate defined benefit pension income.

Social Security Calculator

Estimate retirement benefit entitlements.

Annuity Calculator

Calculate fixed annuity compounding.

Annuity Payout Calculator

Determine regular annuity disbursements.

Credit Card Calculator

Calculate credit card finance charges.

Credit Cards Payoff Calculator

Plan balance payoff timelines.

Debt Payoff Calculator

Calculate debt reduction timeframes.

Debt Consolidation Calculator

Compare loan consolidation savings.

Repayment Calculator

Calculate debt and loan repayments.

Student Loan Calculator

Estimate college loan payment plans.

College Cost Calculator

Plan future tuition and education costs.

Simple Interest Calculator

Basic interest computations.

CD Calculator

Certificate of deposit interest yields.

Bond Calculator

Price bonds and calculate yields.

Mutual Fund Calculator

Calculate fund returns and fees.

Roth IRA Calculator

Calculate tax-free retirement growth.

IRA Calculator

Traditional individual retirement account.

RMD Calculator

Required minimum distribution calculator.

VAT Calculator

Calculate Value Added Tax inclusions.

Cash Back or Low Interest Calculator

Compare auto rebate vs rate offers.

Auto Lease Calculator

Estimate vehicle lease payment terms.

Depreciation Calculator

Compute asset depreciation schedules.

Average Return Calculator

Calculate geometric & arithmetic returns.

Margin Calculator

Compute gross margin & markup ratios.

Discount Calculator

Calculate price markdowns and savings.

Business Loan Calculator

Commercial borrowing cost estimates.

Debt-to-Income Ratio Calculator

Evaluate borrowing qualification (DTI).

Real Estate Calculator

Property investment and deal analysis.

Take-Home-Paycheck Calculator

Calculate net pay after deductions.

Personal Loan Calculator

Unsecured personal loan installment tool.

Boat Loan Calculator

Marine vehicle financing payments.

Lease Calculator

General asset leasing payments.

Refinance Calculator

Calculate mortgage refinancing savings.

Budget Calculator

Analyze household income vs expenses.

Rental Property Calculator

Compute cash flow & cap rates.

IRR Calculator

Calculate internal rate of return.

ROI Calculator

Measure return on capital investments.

APR Calculator

Determine true annual percentage rates.

FHA Loan Calculator

Federal Housing Admin loan estimates.

VA Mortgage Calculator

Veterans affairs mortgage payments.

Home Equity Loan Calculator

Second mortgage repayment estimates.

HELOC Calculator

Home equity line of credit payment tool.

Down Payment Calculator

Plan required home down payments.

Rent vs. Buy Calculator

Compare financial impact of renting vs buying.

Payback Period Calculator

Determine time required to recoup capital.

Present Value Calculator

Discount future cash values.

Future Value Calculator

Project future values of investments.

Commission Calculator

Calculate sales commission earnings.

Mortgage Calculator UK

UK home loan repayment calculations.

Canadian Mortgage Calculator

Canada mortgage rates & amortizations.

Mortgage Amortization Calculator

Comprehensive payoff breakdown schedule.

Percent Off Calculator

Quick discount & percentage calculation.

Sip Calculator

Systematic investment compounding tool.

BMI Calculator

Body mass index for imperial & metric units.

Calorie Calculator

Daily caloric requirements for body goals.

Body Fat Calculator

Estimate body fat percentage.

BMR Calculator

Basal metabolic rate calculation.

Macro Calculator

Calculate protein, carb & fat ratios.

Ideal Weight Calculator

Find healthy weight ranges.

Pregnancy Calculator

Track pregnancy progress and timelines.

Pregnancy Weight Gain Calculator

Monitor healthy maternal weight gain.

Pregnancy Conception Calculator

Estimate probable date of conception.

Due Date Calculator

Calculate expected birth delivery date.

Pace Calculator

Determine running, walking & cycling pace.

Army Body Fat Calculator

US Army circumference-based standards.

Carbohydrate Calculator

Calculate daily carbohydrate intake.

Lean Body Mass Calculator

Measure lean mass vs fat tissue.

Healthy Weight Calculator

Evaluate healthy body proportions.

Calories Burned Calculator

Estimate exercise calorie expenditure.

One Rep Max Calculator

Calculate 1RM for strength lifts.

Target Heart Rate Calculator

Find aerobic training heart rate zones.

Protein Calculator

Daily protein requirements based on weight.

Fat Intake Calculator

Optimize healthy dietary fat intake.

TDEE Calculator

Total daily energy expenditure estimator.

Ovulation Calculator

Predict fertile windows and ovulation.

Period Calculator

Track and predict menstrual cycles.

GFR Calculator

Glomerular filtration rate for kidney health.

Body Type Calculator

Determine female/male body proportions.

Body Surface Area Calculator

Calculate BSA for medical baselines.

BAC Calculator

Blood alcohol concentration estimator.

Weight Watcher Points Calculator

Estimate food nutritional point values.

Overweight Calculator

Analyze excess weight benchmarks.

Scientific Calculator

Advanced scientific computation tool.

Fraction Calculator

Add, subtract, divide & multiply fractions.

Percentage Calculator

Percentage changes, parts, and values.

Triangle Calculator

Solve triangle angles, sides, and areas.

Volume Calculator

Compute volumes of geometric solids.

Standard Deviation Calculator

Calculate variance and standard deviation.

Random Number Generator

Generate true random integers within ranges.

Number Sequence Calculator

Arithmetic & geometric progression solver.

Percent Error Calculator

Compare theoretical vs experimental data.

Exponent Calculator

Power equations and exponential growth.

Binary Calculator

Perform binary operations and arithmetic.

Hex Calculator

Hexadecimal conversion and calculations.

Half-Life Calculator

Radioactive decay and half-life formulas.

Quadratic Formula Calculator

Solve second-order polynomial roots.

Slope Calculator

Find slope and equation of lines.

Log Calculator

Calculate logarithms with custom bases.

Area Calculator

Calculate surface area of basic 2D shapes.

Sample Size Calculator

Determine statistical survey sample size.

Probability Calculator

Determine single and compound odds.

Statistics Calculator

Data analysis and descriptive stats.

Mean, Median, Mode, Range Calculator

Central tendency mathematical solver.

Permutation and Combination Calculator

Calculate nPr and nCr combinations.

Z-score Calculator

Standardize scores in normal distribution.

Confidence Interval Calculator

Statistical sample confidence interval.

Ratio Calculator

Solve and simplify mathematical ratios.

Distance Calculator

Calculate distance between coordinate points.

Circle Calculator

Calculate radius, diameter, area and circumference.

Surface Area Calculator

Compute 3D body surface measurements.

Pythagorean Theorem Calculator

Solve hypotenuse and legs of triangles.

Right Triangle Calculator

Compute missing sides and angles.

Root Calculator

Square roots, cube roots & nth roots.

Least Common Multiple Calculator

Find LCM of multiple numbers.

Greatest Common Factor Calculator

Find GCF / GCD of numeric sets.

Factor Calculator

Find all factors of any integer.

Rounding Calculator

Round numbers to decimals or places.

Matrix Calculator

Add, multiply and find determinants.

Scientific Notation Calculator

Convert to and from scientific notation.

Big Number Calculator

Perform arbitrary high-precision arithmetic.

Prime Factorization Calculator

Decompose numbers into prime factors.

Common Factor Calculator

Identify common factors of integers.

Basic Calculator

Simple daily addition, subtraction, division.

Long Division Calculator

Division steps with quotient & remainders.

Average Calculator

Calculate simple arithmetic means.

P-value Calculator

Calculate p-value from Z, t, F, or chi-square.

Age Calculator

Calculate exact age in years, months & days.

Date Calculator

Add or subtract days between dates.

Time Calculator

Add, subtract & convert hours and minutes.

Hours Calculator

Total work hours and break calculations.

GPA Calculator

Compute cumulative college & high school GPA.

Grade Calculator

Determine grades needed on final exams.

Height Calculator

Predict adult height and convert units.

Concrete Calculator

Estimate yardage required for slabs.

IP Subnet Calculator

CIDR, network mask, and subnet ranges.

Password Generator

Generate secure random passwords.

Dice Roller

Roll simulated virtual dice sets.

Conversion Calculator

Convert metric and imperial units.

Fuel Cost Calculator

Estimate trip fuel and gas expenses.

Voltage Drop Calculator

Calculate electrical cable voltage drop.

BTU Calculator

Determine room heating & cooling power.

Square Footage Calculator

Measure room and land square feet.

Time Card Calculator

Weekly work hours and payroll calculation.

Time Zone Calculator

Convert time between world time zones.

Love Calculator

Fun relationship compatibility tool.

GDP Calculator

Calculate Gross Domestic Product values.

Gas Mileage Calculator

Calculate miles per gallon (MPG).

Horsepower Calculator

Calculate vehicle engine horsepower.

Engine Horsepower Calculator

Formula-based displacement horsepower.

Stair Calculator

Calculate stair rise, run and stringers.

Resistor Calculator

Read resistor color code bands.

Ohms Law Calculator

Calculate voltage, current and resistance.

Electricity Calculator

Estimate appliance power consumption & costs.

Shoe Size Conversion

Convert US, UK, EU shoe sizes.

Tip Calculator

Calculate restaurant tips and bill splits.

Mileage Calculator

Track travel distance and reimbursement.

Density Calculator

Calculate mass to volume density.

Mass Calculator

Physics mass calculations.

Weight Calculator

Convert stones, pounds, kilograms and grams.

Speed Calculator

Compute velocity, distance and time.

Molarity Calculator

Calculate chemical solution concentrations.

Molecular Weight Calculator

Compute molecular molar mass.

Roman Numeral Converter

Convert integers to Roman numerals.

Golf Handicap Calculator

Estimate USGA golf handicap index.

Sleep Calculator

Optimize sleep cycles and wake times.

Tire Size Calculator

Compare automotive tire dimensions.

Roofing Calculator

Calculate roofing squares and pitch shingles.

Tile Calculator

Estimate floor and wall tile quantities.

Mulch Calculator

Estimate cubic yards of garden mulch.

Gravel Calculator

Estimate tons of landscaping gravel.

Wind Chill Calculator

Calculate perceived cold winter temps.

Heat Index Calculator

Calculate humid apparent temperatures.

Dew Point Calculator

Calculate atmospheric moisture dew points.

Bandwidth Calculator

Compute file download and transfer times.

Base64 Encode / Decode

Convert strings to and from Base64 format.

URL Encode / Decode

Escape and unescape URL strings.

Time Duration Calculator

Calculate exact elapsed duration between times.

Day Counter

Count calendar days between dates.

Day of the Week Calculator

Find day of the week for historical dates.