Calculator Tools
28 calculators and math tools
Grocery Split Calculator
Split grocery bills among roommates, family, or friends. Enter each person, assign amounts, add tax and tip, and export the breakdown as CSV or JSON.
Student Loan Calculator
Estimate monthly student loan payments, total interest, and repayment timelines.
Mortgage Calculator
Estimate monthly mortgage payments, total interest, and amortization schedules.
BMI Calculator
Calculate your body mass index and understand what it means for your health.
Body Fat Calculator
Estimate your body fat percentage using the U.S. Navy Method.
Tip Calculator
Calculate tips, split bills, and determine the total amount.
Scientific Calculator
A comprehensive, free scientific calculator with advanced mathematical functions including trigonometry, logarithms, exponents, and more.
Week Calculator
Calculate week numbers for any date, determine dates from week numbers, and plan by weeks.
Date Calculator
Calculate days between dates, add or subtract days, and find future or past dates.
Grade Calculator
A simple, free grade calculator to determine your GPA, final grades, and weighted averages.
GPA Calculator
Calculate your Grade Point Average (GPA) easily. Input your grades and credit hours to determine your cumulative or semester GPA.
Investment Growth Calculator
Calculate potential returns on investments with options for regular deposits, interest rates, and investment periods.
Investment Goal Calculator
Calculate how much you need to save regularly to reach your investment goals.
401(k) Calculator
Plan your retirement with our 401(k) calculator.
Retirement Income Calculator
Calculate your potential retirement income based on savings, investments, and retirement duration.
Auto Loan Calculator
Calculate monthly car payments, total interest, and amortization schedules.
Debt to Income Ratio Calculator
Calculate your debt-to-income ratio (DTI) to understand your financial health.
Budget Calculator
Plan and analyze your monthly budget with our comprehensive calculator.
Car Lease Calculator
Calculate monthly lease payments and total cost of leasing a vehicle.
Triangle Calculator
Calculate the area, perimeter, and angles of a triangle.
Standard Deviation Calculator
Calculate the standard deviation of a set of numbers.
Number Sequence Calculator
Calculate the standard deviation of a set of numbers.
Random Number Generator
Generate random numbers with our free online tool.
Water Intake Calculator
Calculate your daily water intake with our free online tool.
Height Percentile Calculator
Find your height percentile by age and gender using WHO and CDC growth chart data. Supports metric and imperial units and 10 country reference populations.
Hour Calculator
Calculate the number of hours between two dates with our free online tool.
Mean, Median, Mode Calculator
Calculate the mean, median, and mode of a set of numbers with our free online tool.
Shoe Size Converter
Convert shoe sizes between different systems with our free online tool.