Finance Calculators
Free, verified finance calculators with step-by-step guides and reference data.
403(b) Calculator — Project Your Retirement Savings
Calculate 403(b) retirement savings with employer match, catch-up contributions, fee drag, and Traditional vs Roth after-tax comparison.
Law School Admissions Calculator — LSAT & GPA Chances
Estimate law school admission chances by LSAT, GPA, URM status, and work experience. Covers T14 through T50 schools with reach/target/safety.
Reverse Tax Calculator — Find Pre-Tax Price from Total
Work backwards from total price to find pre-tax amount and tax paid. US state rates, VAT, GST, HST presets included. Supports multiple items.
Copart Fee Calculator: Buyer Fees & Total Cost 2026
Calculate Copart buyer fees, virtual bid fees, gate fees, and total cost. Full 2026 fee schedule for secured and unsecured payments included.
Grailed Fee Calculator: Seller Fees & Net Payout 2026
Calculate Grailed seller fees, net payout, and profit. Full 2026 fee schedule — 9% commission on sale + shipping, all payment scenarios, reverse pricing mode.
GM Income Calculator: Monthly Income for GM Financial
Convert hourly, salary, bi-weekly, semi-monthly, or YTD pay to monthly gross income — the exact figure GM Financial uses to evaluate your auto loan.