Fast, Accurate Online Calculators

Free calculators for finance, loans, health, and everyday math. Built for quick decisions on mobile and desktop.

Home Affordability Calculator

Estimate how much house you can afford using income, debt, taxes, insurance, HOA, and mortgage assumptions

Build a loan amortization schedule, compare principal versus interest, and test extra payment strategies

Calculate your current class grade with weighted or points-based assignments, quizzes, exams, and projects

Find the final exam score you need to reach your target course grade and see whether the goal is still achievable

Add, subtract, multiply, and divide fractions and mixed numbers with simplified results and decimal conversions

Estimate concrete volume for slabs, footings, and columns in cubic yards, cubic feet, cubic meters, and bag counts

Calculate hours worked between two times, subtract breaks, and estimate daily or weekly pay for any shift

Calculate your Basal Metabolic Rate and estimate daily calorie needs across common activity levels

Estimate your fertile window, likely ovulation date, next period, and suggested pregnancy test timing

Calculate your monthly mortgage payments, including property tax and insurance

Calculate compound interest growth with regular contributions, multiple compounding frequencies, and a year-by-year breakdown

Calculate your Total Daily Energy Expenditure, BMR, calorie targets, and macronutrient breakdown