Precise Calculations
Made Simple
Professional-grade calculators for finance, health, and education — designed with accuracy and ease of use in mind.
Health Calculators
BMI, calories, and other health metrics for your wellbeing
Finance Tools
Mortgages, interest rates, and investment planning
Academic Tools
Grade calculations and academic performance metrics
Why Choose Monkey Calcs?
Our calculators are designed with simplicity and accuracy in mind
Simple & Intuitive
Clean interface designed for ease of use with intuitive controls
Accurate Results
Calculations based on trusted formulas and methodologies
Easy Sharing
Share your calculator results with friends or save for later
Export Options
Download your calculation results as PDF reports
Popular Calculators
Our most used tools to help you make quick and accurate calculations
BMI Calculator
Calculate your Body Mass Index and track your weight status
Mortgage Calculator
Plan your home loan with detailed monthly payment breakdowns
Interest Calculator
Calculate compound interest and plan your investments
Calories Calculator
Determine your daily caloric needs based on your lifestyle
Grade Calculator
Calculate your final grade and GPA with weighted assignments
Amortization Calculator
Visualize your loan payments schedule and interest over time
Ready to Calculate?
Start using our free calculators today and make better-informed decisions.