Free Online Calculator Tools
Access a comprehensive collection of free online calculators and converters. Fast, accurate, and easy to use tools for all your calculation needs.
Subnet Calculator
Calculate network subnets, IP ranges, and CIDR notation
Network
Percentage Calculator
Calculate percentages, percentage change, and ratios
Converter
Exchange Rate Converter
Convert currencies with real-time exchange rates
Finance
Unit Converter
Convert between different units of measurement
Converter
Date Calculator
Calculate date differences and add/subtract days
Date & Time
Regular Expression Tester
Test and validate regular expressions with live results
Developer
Timestamp Converter
Convert between Unix timestamps and human-readable dates
Developer
Chinese Zodiac Calculator
Find your Chinese zodiac sign and characteristics
Lifestyle
Constellation Calculator
Discover your zodiac constellation and horoscope
Lifestyle
Calorie Calculator
Calculate daily calorie needs and track nutrition
Health
BMI Calculator
Calculate Body Mass Index and health recommendations
Health
Steps Distance Calculator
Convert between steps and distance with scientific precision
Health
Loan Calculator
Calculate monthly payment, total interest, and amortization schedule
Finance
BMR Calculator
Calculate Basal Metabolic Rate and Total Daily Energy Expenditure
Health
Compound Interest Calculator
Calculate investment growth with compound interest over time
Finance
Tip Calculator
Calculate restaurant tips and split bills among multiple people
Finance
Body Fat Calculator
Calculate body fat percentage using BMI or Navy method
Health
Rental Yield Calculator
Calculate rental yield, cash flow, ROI, and investment returns
Finance
Why Choose Our Calculator Tools?
Fast & Accurate
Get instant results with precise calculations
Free to Use
All tools are completely free with no registration required
Mobile Friendly
Works perfectly on all devices and screen sizes