Calculator
Use this basic calculator for simple math calculations. Click the buttons or use your keyboard. Switch to scientific mode for advanced functions including trigonometry, logarithms, and more.
Browse our collection of specialized calculators organized by category below.
Calculator Categories
Choose from 230+ calculators in 15 categories
Health & Fitness Calculators
12 Tools
BMI, body fat, heart rate, calories, workout planning, and nutrition tools.
- Enhanced BMI Calculator - Interactive body mass index with personalized recommendations
- Body Fat Calculator - Advanced composition analysis with body type visualization
- Heart Rate Zones - Visual training zones with performance optimization
- Macro Calculator - Visual nutrition planning with pie charts and meal distribution
- Workout Planner - Weekly exercise schedules with interactive calendar view
- BMR Calculator - Basal metabolic rate with TDEE calculations
- Calorie Intake Calculator - Daily calorie needs and goal planning
- Ideal Weight Calculator - Multiple scientific formulas
- Water Intake Calculator - Personalized hydration recommendations
- Sleep Calculator - Optimal bedtime and wake time planning
- Heart Rate Zones Calculator - Training zone calculations
- Body Fat Percentage Calculator - Standard body fat analysis
Math Calculators
10 Tools
Algebra, geometry, calculus, statistics, and interactive math tools.
- Basic Arithmetic Calculator - Addition, subtraction, multiplication, division
- Algebra Equation Solver - Linear and quadratic equations
- Area Calculator - Comprehensive shape calculations
- Trigonometry Calculator - Sin, cos, tan with unit circle
- Calculus Calculator - Derivatives, integrals, limits
- Fractions & Decimals Calculator - Conversion and operations
- Number Theory Tools - Prime numbers, GCD, LCM
- Statistics Calculator - Mean, median, standard deviation
- Unit Conversions - Length, weight, temperature, volume
- Math Games & Puzzles - Interactive learning tools
Parenting Calculators
14 Tools
Child development, feeding schedules, education planning, and family tools.
- Baby Growth Tracker - Weight, height, head circumference percentiles
- Feeding Schedule Calculator - Bottle and breastfeeding schedules
- Sleep Schedule Planner - Age-appropriate sleep requirements
- Sleep Tracker - Monitor baby sleep patterns
- Child Development Milestones - Track developmental progress
- Childcare Cost Calculator - Daycare and babysitting expenses
- Education Savings Calculator - 529 and college fund planning
- Parenting Calculator - General parenting tools and guides
- Enhanced Parenting Calculator - Advanced parenting tools
- Family Budget Planner - Monthly family expense tracking
- Sleep Tips Guide - Comprehensive sleep advice by age
- Reading Level Calculator - Assess child's reading comprehension
- Grade Calculator - Track academic performance
- Study Timer - Homework and study session planning
Financial Calculators
12 Tools
Mortgage, loan, investment, budget, and retirement planning tools.
- Loan Payment Calculator - Monthly payments and amortization
- Mortgage Calculator - Home loan payments and refinancing
- Compound Interest Calculator - Investment growth projections
- Investment Calculator - Portfolio growth and returns
- Budget Planner - Monthly income and expense tracking
- Savings Calculator - Goal planning and emergency funds
- Retirement Planner - 401k, IRA, and pension planning
- Tax Calculator - Income tax estimation and planning
- EMI Calculator - Equated monthly installments
- Currency Converter - Real-time exchange rates
- ROI Calculator - Return on investment analysis
- Inflation Calculator - Purchasing power and cost of living