Calculator Categories

Calculate monthly payments, total interest, and amortization schedules

Personal loan payments, terms, and repayment schedules

Car loan payments, trade-in values, and financing options

Simple and compound interest on deposits and loans

Determine payment amounts for any loan type

Estimate retirement savings and withdrawal strategies

Detailed amortization schedules for loans

Future value of investments with regular contributions

Purchasing power changes over time

Growth of money with compound interest over time

Hourly to annual, take-home pay, and overtime estimates

Find the interest rate needed to reach a financial goal

Calculate sales tax and total purchase price

Estimate federal and state income taxes

Return on investment and profit margin analysis

Calculate tips and split bills among groups

General financial calculations and time value of money

Value-added tax calculations for goods and services

Calculate discounted prices after percentage off

Sale prices, savings, and multi-discount stacking

Calculate gross, operating, and net profit margins

Find the break-even point for a product or service

Calculate markup percentage and selling price

Calculate work hours, overtime, and weekly pay

Estimate employee payroll with deductions

Body Mass Index and health category assessment

Daily calorie needs based on age, weight, and activity

Estimate body fat percentage using measurements

Basal Metabolic Rate for daily energy expenditure

Healthy weight range based on height and frame

Due date, trimester tracking, and milestones

Estimate conception date from due date or last period

Calculate expected delivery date

Daily water intake recommendation based on weight and activity

Optimal bedtime and wake time based on sleep cycles

Predict adult height for children or convert height units

Compare heights between two or more people visually

Calorie deficit needed to reach target weight

Protein, carbs, and fat targets for your goals

Running and walking pace, speed, and finish time

Estimate your one-rep max from submaximal lifts

Training heart rate zones based on age and fitness

Estimate calories burned during various activities

Percentages, ratios, and proportional calculations

Add, subtract, multiply, and divide fractions

Advanced mathematical operations and functions

Generate random numbers within a specified range

Powers, roots, and exponential calculations

Central tendency measures for data sets

Calculate logarithms in any base

Break numbers into prime factors

Greatest common divisor and least common multiple

Solve linear equations, inequalities, and expressions

Solve quadratic equations using the quadratic formula

Solve systems of two or more linear equations

Factor, expand, and evaluate polynomials

Solve and graph linear and quadratic inequalities

Matrix operations: addition, multiplication, determinant, inverse

Area, perimeter, angles, and side lengths of triangles

Area, circumference, diameter, and arc length

Area, perimeter, and diagonal of rectangles

Calculate area for any shape

Volume of 3D shapes: sphere, cylinder, cone, cube

Find missing sides of right triangles

Surface area of 3D shapes

Sin, cos, tan, and inverse trig functions

Solve triangles using the law of sines

Solve triangles using the law of cosines

Values on the unit circle for any angle

Find derivatives of functions step by step

Compute definite and indefinite integrals

Evaluate limits of functions

Sum of arithmetic and geometric series

Functions, domains, ranges, asymptotes, and transformations

Standard deviation, variance, and data spread

Basic probability, combinations, and permutations

Calculate z-scores and percentiles

Pearson correlation coefficient between data sets

Linear regression and line of best fit

Calculate nCr and nPr for counting problems

Plot functions, find intercepts, and visualize equations

Speed, velocity, distance, and time relationships

Newton's laws, force, mass, and acceleration

Kinetic energy, potential energy, and work

Voltage, current, resistance, and power

Trajectory, range, and max height of projectiles

Frequency, wavelength, and wave speed

Calculate molecular weight of chemical compounds

Solution concentration and dilution calculations

pH, pOH, and hydrogen ion concentration

PV=nRT calculations for gases

Balance equations and calculate reactant/product amounts

Calculate exact age in years, months, and days

Add or subtract days, weeks, months from a date

Add, subtract, and convert time durations

Calculate hours between two times

Count days between two dates

Count working days between dates excluding weekends

Trip fuel costs based on distance and efficiency

Miles per gallon and fuel efficiency

Electric vehicle range and charging estimates

Concrete volume needed for slabs, footings, and columns

Paint needed for walls and ceilings

Roofing materials needed based on area and pitch

Board feet and lumber quantity estimates

Scale recipe ingredients up or down

Convert between cups, tablespoons, ounces, and grams

Baker's percentages and ingredient ratios

Convert between any units of measurement

Convert between Celsius, Fahrenheit, and Kelvin

Convert between pounds, kilograms, ounces, and grams

Convert between meters, feet, inches, and more

Convert between bytes, KB, MB, GB, TB

Convert between mph, km/h, m/s, and knots

Convert between Roman and Arabic numerals

Convert and calculate in binary, octal, and hexadecimal

Generate secure random passwords

IP subnet masks, CIDR notation, and network ranges

Calculate MD5, SHA-256, and other hash values

Calculate grade point average from course grades

Final grade needed and weighted grade averages

Convert shoe sizes between US, EU, UK, and CM

Estimate electricity costs for appliances

Fair rent splitting based on room size or income