SIMPLE TOOLS. USEFUL ANSWERS.
Numbers made
simple.
Free calculators for the decisions you make every day. No accounts, no distractions—just answers.
Explore calculatorsBUILT FOR CLARITY
Less figuring out.
More moving forward.
Whether you're comparing loan payments or checking business numbers, get a useful result without digging through a spreadsheet.
Find your calculator ↗MOST POPULAR
Explore our calculators
Student Loan Payment Calculator
Estimate monthly payments, total interest, and repayment costs.
Use calculator ↗Student Loan Payoff Calculator
Explore extra payments and how quickly a student loan can be paid off.
Use calculator ↗Household Budget Calculator
Compare monthly income, planned spending, and actual expenses.
Use calculator ↗Options Profit Calculator
Estimate long call and put outcomes at expiration.
Use calculator ↗Basic Project Plan Calculator
Plan tasks, working-day deadlines, budgets, and completion.
Use calculator ↗Agile Project Planning Calculator
Estimate velocity, remaining sprints, and delivery dates.
Use calculator ↗BROWSE BY TOPIC
What are you working on?
HOW WE THINK
Useful by design.
Get to the point
Start calculating without creating an account.
Know the numbers
Clear labels, assumptions, and readable results.
Keep it lightweight
Fast, responsive pages that work in your browser.
Move forward
Practical results for everyday decisions.