401(k) Calculator
Estimate how your 401(k) could grow with your contributions, employer match, salary growth, returns, and fees.
Tools
Search by name or job. New tools appear here when they ship.
CD Calculator
Estimate your CD return from your deposit, APY, and term. Compare rates, explore early withdrawal penalties, and see a simple CD ladder.
Factor Calculator
Find all factors of a number, factor pairs, and prime factorization, or use this factoring calculator for common algebraic expressions.
Height Calculator
Estimate a child’s adult height using parent heights, with results in feet, inches, and centimeters.
Margin Calculator
Calculate profit margin, markup, profit, or the selling price you need to hit a target margin.
Paint Calculator
Estimate how much paint you’ll need for a room, a wall, or a ceiling. Enter your measurements, choose coats, and we’ll do the math.
Roth IRA Calculator
Enter a few numbers to see a projected Roth IRA balance, whether that looks on track for the spending you want, and a short list of next moves. Limits follow the tax year you choose.
Slope Calculator
Find the slope of a line from two points, an equation, or rise and run. See the equation, angle, graph, and calculation.
Texas Paycheck Calculator
Estimate Texas take-home pay after federal taxes, FICA, and deductions for salary or hourly pay.
Volume Calculator
Calculate the volume of boxes, cylinders, spheres, cones, and other 3D shapes. Enter measurements in any unit and see volume, capacity, and the formula used.