Free Online Finance Calculators

Mortgage Calculator

Free mortgage calculator: estimate your monthly payment, total interest and total cost from home price, down payment, rate, term, property tax and insurance.

Sales Tax Calculator

Calculate sales tax and the total price, or reverse-calculate the pre-tax price from a tax-inclusive amount. Works for any US state or local rate.

Tip Calculator & Bill Splitter

Calculate the tip and split the bill between any number of people. Choose 15%, 18%, 20% or a custom tip percentage.

Compound Interest Calculator

See how your savings grow with compound interest and monthly contributions. Free calculator with future value, total contributions and interest earned.

Percentage Calculator

Find X% of a number, what percent one number is of another, and the percentage increase or decrease between two values.

Pregnancy Due Date Calculator

Estimate your baby's due date, current pregnancy week and trimester from the first day of your last menstrual period (LMP).

ROI Calculator

Calculate return on investment (ROI), net profit and annualized ROI (CAGR) from the amount invested, the final value and the holding period.

Loan Payment Calculator

Calculate monthly payments for auto loans, personal loans and student loans. See total interest and total amount repaid.

Profit Margin Calculator

Calculate gross profit margin and markup from cost and price, or find the selling price needed to reach a target margin.

Hourly to Salary Calculator

Convert an hourly wage to annual, monthly, bi-weekly and weekly pay based on hours per week and weeks worked per year.

Kitchen Cabinet Calculator & Cut List

Free kitchen cabinet calculator: enter width, height and depth to get a panel cut list, number of 18 mm sheets, edge banding, hinges and assembly steps.

Bathroom Vanity Cabinet Calculator

Calculate board, sheets, edge banding and hardware for a bathroom vanity cabinet. Free cut list and assembly steps, no sign-up.

Wardrobe & Closet Cut List Calculator

Free wardrobe calculator: get a cut list, board sheets, edge banding, hinges, drawer slides and handles for your DIY closet.

Tile & Grout Calculator

Free tile calculator: enter room size and tile size to get boxes of tile including waste, adhesive bags and grout needed.

Room Paint Calculator

Free paint calculator: enter room size, doors and windows to get liters/gallons of paint, primer and masking tape for walls and ceiling.

Laminate Flooring & Baseboard Calculator

Free flooring calculator: get laminate packs including waste, underlayment area, baseboard length and threshold strips.

Window & Door Screen Calculator

Free window screen calculator: get aluminium frame length, fiberglass mesh area, corners and hardware for pleated, hinged, sliding or fixed screens.