💰 Financial Calculators → View All (26)
🏠 Mortgage Calculator
Calculate monthly mortgage payments, total interest, and amortization schedule
💵 Loan Calculator
Calculate loan payments and total interest for any type of loan
🏖️ Retirement Calculator
Plan your retirement savings and estimate future nest egg
📈 Investment Calculator
Calculate investment returns and compound growth over time
🔢 Compound Interest Calculator
Calculate compound interest and see how your money grows
💼 Salary Calculator
Convert between hourly, weekly, monthly, and annual salary
🚗 Car Loan Calculator
Calculate auto loan payments and total cost of vehicle financing
💎 Savings Calculator
Calculate how much your savings will grow over time
📊 Tax Calculator
Estimate your income tax and take-home pay
🎯 401k Calculator
Calculate 401k retirement savings and employer match
📝 Budget Calculator
Create and track your monthly budget and expenses
💳 Debt Payoff Calculator
Calculate debt freedom timeline using avalanche or snowball method
🔄 Mortgage Refinance Calculator
Determine if refinancing saves money and calculate break-even point
🚙 Car Lease vs Buy Calculator
Compare total costs of leasing versus buying a vehicle
📉 Inflation Calculator
Calculate purchasing power erosion and future value of money
💳 Credit Card Payoff Calculator
Calculate how long to pay off credit card debt and total interest
🔗 Debt Consolidation Calculator
Compare current debts vs consolidation loan to see savings
📊 APR Calculator
Calculate true Annual Percentage Rate including all fees
🏡 Home Equity Calculator
Calculate your home equity and available borrowing power
📈 Simple Interest Calculator
Calculate simple interest on loans, investments, and savings
🎓 Student Loan Calculator
Calculate student loan payments and repayment strategies
📈 ROI Calculator
Calculate Return on Investment for business decisions
💼 Profit Margin Calculator
Calculate profit margins and markup percentages
⚖️ Break-Even Calculator
Calculate break-even point for business planning
💰 Payroll Calculator
Calculate net pay, deductions, and payroll taxes
💵 Commission Calculator
Calculate sales commissions and earnings
🏃 Health & Fitness Calculators → View All (14)
⚖️ BMI Calculator
Calculate your Body Mass Index and healthy weight range
🍎 Calorie Calculator
Calculate daily calorie needs for weight loss or maintenance
🔥 TDEE Calculator
Calculate Total Daily Energy Expenditure based on activity level
💪 Ideal Weight Calculator
Calculate your ideal body weight using proven medical formulas
💧 Water Intake Calculator
Calculate daily water intake needs for optimal hydration
🏋️ One Rep Max Calculator
Calculate 1RM and optimize your strength training program
🏃 Running Pace Calculator
Calculate running pace, speed, and race finish times
👶 Pregnancy Calculator
Calculate due date and track pregnancy milestones
📊 Body Fat Calculator
Calculate body fat percentage and lean mass
🥗 Macro Calculator
Calculate macronutrient needs for your fitness goals
❤️ Heart Rate Calculator
Calculate target heart rate zones for training
👣 Steps to Miles Calculator
Convert daily steps to miles and kilometers
📏 Body Surface Area Calculator
Calculate BSA using multiple medical formulas for clinical dosing
🌙 Ovulation Calculator
Track fertile days, predict ovulation, and plan for conception
🔧 General Purpose Calculators → View All (15)
📊 Percentage Calculator
Calculate percentages, percentage increase, and decrease
🔄 Unit Converter
Convert between metric and imperial units instantly
📅 Date Calculator
Calculate days between dates and plan future events
🎂 Age Calculator
Calculate age in years, months, days, and hours
🎓 GPA Calculator
Calculate grade point average and academic performance
📝 Grade Calculator
Calculate grades, weighted averages, and final scores
💵 Tip Calculator
Calculate tips and split bills easily
💸 Discount Calculator
Calculate sale prices and discount percentages
💱 Currency Converter
Convert between currencies with live rates
🧾 Sales Tax Calculator
Calculate sales tax and final prices
⏰ Time Calculator
Calculate time differences, add/subtract time, and convert time zones
🎲 Random Number Generator
Generate random numbers, lottery numbers, and dice rolls
🧮 Scientific Calculator
Advanced mathematical calculator with trigonometry and logarithms
🏛️ Roman Numeral Converter
Convert between Arabic numbers and Roman numerals
⛽ Fuel Cost Calculator
Calculate fuel expenses for trips and compare vehicle efficiency
💰 Cost Per Use Calculator
Calculate the true value of items and services by cost per use
About CalcTools Pro
CalcTools Pro is your trusted source for free, professional-grade online calculators. Whether you're planning your finances, tracking your health, or solving everyday mathematical problems, our tools provide fast, accurate results you can rely on.
All our calculators are available 24/7, require no registration, and work perfectly on desktop, tablet, and mobile devices. We're committed to providing the best calculation experience with clean design, intuitive interfaces, and precise algorithms.