32+ free calculators

The calculator
for everything.

Instant, visual tools for every math problem — from your mortgage to your restaurant bill. Results update as you type.

32+
Free tools
0
Signups ever
100%
Private
Mortgage · Live Calculator
—
Adjust sliders below
Loan Amount
—
Total Interest
—
Payoff Year
—
Rate
6.50%
Home Price$350,000
Interest Rate6.50%
Loan Term30 years
Adjust the sliders to see your mortgage payment.
Advertisement
Finance & Loans
🏠
Mortgage Calculator
Monthly payment + amortization
💳
Loan Calculator
Car, personal, student loans
📈
Compound Interest
Investment growth over time
🏦
Savings Calculator
Reach your savings goal
💰
Credit Card Payoff
Debt-free date + interest saved
🎯
Retirement Calculator
Are you on track?
💼
Salary Calculator
Hourly ↔ annual conversion
🚗
Auto Loan
Car payment with trade-in
Everyday Math
%
Percentage Calculator
5 types of percent problems
🍽️
Tip Calculator
Tip + bill split instantly
🏷️
Discount Calculator
Sale price after any % off
📋
Sales Tax Calculator
Add or strip tax from any price
〰️
Average Calculator
Mean, median, mode
⚖️
Ratio Calculator
Simplify and solve ratios
Advertisement
Health & Body
⚖️
BMI Calculator
Body mass index + healthy range
🔥
Calorie Calculator
Daily calorie needs (TDEE)
🤱
Pregnancy Due Date
Due date from last period
🥗
Macro Calculator
Protein, carbs, fat targets
💪
Ideal Weight
Healthy weight for your height
📅
Ovulation Calculator
Fertile window from cycle
Date & Time
🎂
Age Calculator
Exact age in years, months, days
📆
Date Difference
Days between two dates
⏱️
Countdown Timer
Days until any date
🌍
Time Zone Converter
Convert times worldwide
School & Student
🎓
GPA Calculator
Weighted + unweighted GPA
📝
Grade Calculator
What do I need on my final?
🎒
Student Loan
Monthly payment after grad
✅
Test Grade
Score from right/wrong answers
Business & Real Estate
📊
Profit Margin
Gross and net margin %
⏰
Hourly Rate
Freelance rate from salary goal
🔨
ARV Calculator
After-repair value for flips
📬
Rental Yield
Gross + net rental return %
Why people use MathlyPro
Most calculator sites feel like 2008. We built something you'd actually want to use.
⚡
Results as you type
No button to click. Numbers update the instant you touch any slider.
📊
Visual breakdowns
Charts that show exactly where your money goes.
💬
Plain English
We translate results into clear explanations you can act on.
🔒
100% private
All calculations in your browser. We never see your data.
Advertisement