Calculators That Just Work
Calcand gives you over 200 free calculators across finance, health, math, and more. No accounts, no ads cluttering your screen—just straightforward tools that get you answers.
Financial Calculators
Financial calculators for mortgages, loans, investments, retirement planning, and more. Make informed financial decisions with accurate calculations.
Mortgage Calculator
Calculate monthly payments
Loan Calculator
General loan payments
Auto Loan Calculator
Car payment estimates
Interest Calculator
Simple & compound interest
Payment Calculator
Monthly payment amounts
Retirement Calculator
Plan your retirement
Amortization Calculator
Loan amortization schedule
Investment Calculator
Investment returns
Inflation Calculator
Inflation adjustments
Compound Interest
Growth over time
Salary Calculator
Hourly to annual wages
Tip Calculator
Restaurant tips
Fitness & Health Calculators
Health and fitness calculators for BMI, calories, body fat, and more. Track your health metrics and reach your fitness goals.
BMI Calculator
Body Mass Index
Calorie Calculator
Daily calorie needs
Body Fat Calculator
Body fat percentage
BMR Calculator
Basal metabolic rate
Ideal Weight Calculator
Healthy weight range
Pace Calculator
Running/walking pace
Pregnancy Calculator
Due date calculator
Macro Calculator
Macronutrient needs
TDEE Calculator
Total daily energy
Protein Calculator
Daily protein intake
Math Calculators
Mathematical calculators for basic arithmetic, scientific calculations, statistics, geometry, and more. Solve complex problems with ease.
Basic Calculator
Simple arithmetic
Scientific Calculator
Advanced functions
Fraction Calculator
Fraction operations
Percentage Calculator
Percentage calculations
Triangle Calculator
Triangle properties
Standard Deviation
Statistical analysis
Volume Calculator
3D shape volumes
Area Calculator
Shape areas
Exponent Calculator
Powers & exponents
Advanced Math Calculators
Advanced mathematical tools for number theory, combinatorics, sequences, and more. Perfect for students, mathematicians, and enthusiasts.
Fibonacci Calculator
Fibonacci numbers & golden ratio
Prime Number Calculator
Check if a number is prime
Prime Factorization
Factor into primes
Quadratic Solver
Solve ax² + bx + c = 0
Matrix Multiplication
Multiply matrices
Permutations & Combinations
nPr and nCr calculations
Base Converter
Binary, hex, octal, decimal
Binomial Expansion
Expand (a + b)^n
Euler's Totient
Calculate φ(n)
Collatz Conjecture
Explore the 3n+1 problem
Other Calculators
Useful everyday calculators for age, dates, time, GPA, and various other calculations. Tools for everyday life.
Conversion Calculators
Unit conversion tools for length, weight, temperature, volume, and more. Convert between metric and imperial units instantly.
Length Converter
Feet, meters, inches
Weight Converter
Pounds, kilograms, ounces
Temperature Converter
Celsius, Fahrenheit, Kelvin
Volume Converter
Gallons, liters, cups
Area Converter
Sq ft, sq meters, acres
Speed Converter
MPH, km/h, knots
Time Converter
Hours, minutes, seconds
Data Storage Converter
Bytes, KB, MB, GB
Energy Converter
Joules, calories, BTU
Pressure Converter
PSI, bar, Pascal
About Calcand
Calcand exists because calculators should be simple. Pick a tool, enter your numbers, get your answer. We skip the clutter and focus on what matters: giving you accurate results for mortgage payments, fitness tracking, unit conversions, and everything in between.
Every tool on Calcand is free and works without creating an account. We include explanations of the formulas behind each calculation so you can understand the math, not just trust it blindly.
Whether you're a student working through homework, a professional running quick numbers, or just figuring out a tip—grab a calculator and get it done.