Math Calculators
25Math Solver
Solve math problems and see every step of the working
Scientific Calculator
Advanced calculator with trig, log, and exponent functions
Fraction Calculator
Add, subtract, multiply, and divide fractions
Percentage Calculator
Find percentages, increases, and decreases instantly
Random Number Generator
Generate random numbers within any range
Triangle Calculator
Solve sides, angles, and area of any triangle
Standard Deviation Calculator
Calculate standard deviation and variance for any data set
Linear Equations Calculator
Solve linear equations and systems of equations
Quadratic Calculator
Solve quadratic equations and find the roots
Polynomial Calculator
Add, multiply and find the roots of polynomials
Matrix Calculator
Add, multiply, invert and find the determinant of matrices
Circle Calculator
Find the radius, diameter, circumference and area of a circle
Area Calculator
Calculate the area of squares, rectangles, triangles and more
Pythagorean Theorem Calculator
Find a missing side of a right triangle
Mean Median Mode
Find the mean, median, mode and range of a data set
Probability Calculator
Work out the chance of single and combined events
Derivative Calculator
Differentiate a function and see the steps
Integral Calculator
Find integrals and the area under a curve
Limit Calculator
Evaluate the limit of a function at a point
Prime Factorization Calculator
Break any number into its prime factors
Sin Cos Tan Calculator
Find the sine, cosine and tangent of an angle
Law of Sines Calculator
Solve a triangle using the law of sines
Radian / Degree Calculator
Convert angles between radians and degrees
GCD / LCM Calculator
Find the greatest common divisor and least common multiple
Binary Calculator
Add, subtract and convert binary, decimal and hex numbers
Financial Calculators
21Mortgage Calculator
Estimate monthly mortgage payments and interest
Loan Calculator
Calculate loan payments, interest, and payoff time
Auto Loan Calculator
Estimate car loan payments and total interest
Interest Calculator
Calculate simple and compound interest
Payment Calculator
Work out fixed loan or lease payments
Retirement Calculator
Plan your retirement savings and income needs
Amortization Calculator
See a full loan repayment schedule over time
Investment Calculator
Project investment growth over time
Refinance Calculator
Compare your current loan with a refinance and see the savings
Down Payment Calculator
Work out the down payment and monthly cost of a home
Rent vs Buy Calculator
Compare the long-term cost of renting and buying a home
Compound Interest Calculator
See how savings grow with compound interest over time
Savings Calculator
Plan how your savings grow with regular deposits
401k Calculator
Project your 401(k) balance with contributions and employer match
Tax Calculator
Estimate your income tax and take-home pay
Salary Calculator
Convert pay between hourly, weekly, monthly and yearly
Profit Margin Calculator
Calculate gross profit and margin from cost and price
Markup Calculator
Set a selling price from cost and your target markup
Break-Even Point Calculator
Find how many units you must sell to cover your costs
Inflation Calculator
See how inflation changes the value of money over time
Tip Calculator
Work out the tip and split the bill between friends
Health & Fitness Calculators
19BMI Calculator
Check your Body Mass Index and healthy weight range
Calorie Calculator
Find your daily calorie needs for your goals
Body Fat Calculator
Estimate body fat percentage using standard formulas
BMR Calculator
Calculate your Basal Metabolic Rate
Ideal Weight Calculator
Find a healthy target weight for your height
Overweight Calculator
Find how far you are above a healthy weight for your height
Due Date Calculator
Estimate your pregnancy due date
Pregnancy Calculator
Track your pregnancy week by week
Pregnancy Conception Calculator
Estimate your conception date from your due date or last period
Pregnancy Weight Gain Calculator
See how much weight is healthy to gain during pregnancy
Period Calculator
Predict your next period, fertile window and ovulation day
Carbohydrate Calculator
Find your daily recommended carb intake
Fat Intake Calculator
Calculate healthy daily fat intake
Pace Calculator
Calculate running pace, time, or distance
Running Calculator
Work out running pace, distance and finish time
Calories Burned Calculator
Estimate calories burned while walking, running and training
Blood Pressure Calculator
Check what your blood pressure reading means
Sleep Calculator
Find the best bedtime or wake-up time for full sleep cycles
Water Intake Calculator
Estimate how much water you should drink each day
Unit Converters
37Unit Converter
Convert between length, weight, volume, and more
Length Converter
Convert between meters, feet, miles, and more
Weight Converter
Convert between kg, lb, oz, and more
Temperature Converter
Convert between Celsius, Fahrenheit, and Kelvin
Volume Converter
Convert between liters, gallons, cups, and more
Speed Converter
Convert between mph, km/h, and knots
Area Converter
Convert square feet, square meters, acres, hectares and more
Time Converter
Convert between seconds, minutes, hours, days, weeks and years
Pressure Converter
Convert between pascal, bar, psi, atm and other pressure units
Data Storage Converter
Convert bytes, KB, MB, GB and TB
Liters to Gallons
Convert liters to US gallons
Seconds to Minutes
Convert seconds to minutes
Minutes to Hours
Convert minutes to hours
Hours to Days
Convert hours to days
Days to Weeks
Convert days to weeks
Hours to Minutes
Convert hours to minutes
ML to Liters
Convert milliliters to liters
Cups to ML
Convert cups to milliliters
Cubic Meters to Liters
Convert cubic meters to liters
Fluid Ounces to ML
Convert fluid ounces to milliliters
Celsius to Fahrenheit
Convert Celsius to Fahrenheit
Celsius to Kelvin
Convert Celsius to Kelvin
Fahrenheit to Kelvin
Convert Fahrenheit to Kelvin
CM to Feet
Convert centimeters to feet
CM to Inches
Convert centimeters to inches
Feet to Inches
Convert feet to inches
Inches to MM
Convert inches to millimeters
KM to Miles
Convert kilometers to miles
Meters to Feet
Convert meters to feet
Meters to Yards
Convert meters to yards
MM to CM
Convert millimeters to centimeters
Grams to Ounces
Convert grams to ounces
KG to Grams
Convert kilograms to grams
KG to LBS
Convert kilograms to pounds
MG to Grams
Convert milligrams to grams
Ounces to Pounds
Convert ounces to pounds
Ton to KG
Convert tons to kilograms
Date & Time Calculators
10Age Calculator
Calculate exact age in years, months, and days
Date Calculator
Add or subtract days from any date
Time Calculator
Add or subtract hours, minutes, and seconds
Hours Calculator
Calculate hours worked between two times
Days Between Dates Calculator
Count the days, weeks and months between two dates
Birthday Calculator
Find your next birthday, birth weekday and days to go
Time Zone Converter
Convert a time from one time zone to another
Business Days Calculator
Count working days between two dates, skipping weekends
Work Hours Calculator
Add up hours worked from clock-in and clock-out times
Paycheck Calculator
Estimate take-home pay after taxes and deductions
Education Calculators
3Construction Calculators
3Science Calculators
2Other Calculators
8Love Match Calculator
Check how well two names match, just for fun
Password Generator
Generate strong, random passwords
Astrology Calculator
Find your zodiac sign and compatibility
Numerology Calculator
Find your life path, destiny and soul numbers from your name and birth date
Numerology Compatibility Calculator
Compare two people's numerology numbers for compatibility
Abjad Calculator
Get the abjad numeric value of any Arabic name or word
Abjad Compatibility Calculator
Compare two names using abjad values for compatibility
IP Subnet Calculator
Work out network, broadcast and host range from an IP and mask