Mortgage
Estimate your monthly mortgage payment with property tax, insurance, PMI, and HOA folded in. Built for the US 30-year and 15-year fixed.
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Fast, Lite, accurate /+ calculators.
For the everyday math that runs life — finance, education, health, and everything else.
Financial (12 tools)
Refinance
See your refinance break-even point and total interest saved over the new loan term.
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Car Loan
Estimate monthly auto loan payments, total interest paid, and how down payment changes the math.
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Personal Loan
Monthly payment, total interest, and full amortization schedule for any personal loan amount and term.
401(k)
Project your 401(k) balance at retirement with contributions, employer match, and realistic market returns.
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Credit Card Payoff
See how long it will take to clear your card and how much interest you will pay along the way.
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Debt-to-Income
Calculate your DTI ratio — the number lenders use to decide whether to approve a mortgage or loan.
Compound Interest
See how money grows over time with compounding. Adjust contributions, rate, and frequency.
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Roth IRA
Project tax-free Roth IRA growth based on contributions, expected returns, and years to retirement.
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Retirement
How much you need to retire — based on your spending, expected returns, Social Security, and timeline.
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College Savings
Plan for college costs with inflation-adjusted projections. Built around 529 plan assumptions.
Student Loan Payoff
Compare payoff strategies — avalanche vs snowball — and find your real interest cost.
Education (8 tools)
GPA
Calculate your semester GPA on a 4.0 scale with letter grades and credit hours.
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Weighted GPA
Calculate weighted GPA on the 5.0 scale that gives extra points for AP and Honors classes.
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Final Grade
What you need on the final exam to hit your target grade in the course.
Class Rank
Estimate your class rank percentile from your GPA and class size.
SAT Score
Convert raw SAT scores to scaled scores and compare against national percentile benchmarks.
ACT Score
Convert ACT raw scores to scaled and composite scores with national percentile comparisons.
Grade
Calculate your overall course grade from individual assignments, quizzes, and exams.
Study Hours
How many hours of study you need based on credit hours and course difficulty.
Health (4 tools)
BMI
Body Mass Index with CDC categories and healthy weight range for your height in feet/inches and pounds.
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Calorie / TDEE
Daily calorie needs using the Mifflin-St Jeor equation, adjusted for activity level and goal.
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Body Fat
Estimate body fat percentage using the U.S. Navy method or BMI-based approximation.
Due Date
Pregnancy due date and full timeline of milestones based on last menstrual period.
Everyday (1 tool)
Age
Calculate exact age in years, months, weeks, days, and hours between any two dates.