7 free calculators
Free Business Calculators
Free online calculators for payroll, profit margin, markup, self-employment tax, loans, and more. Instant results, no signup.
Showing 7 of 7
Payroll & tax
- No.01
Payroll Calculator
Free 2026 payroll calculator: federal withholding (Pub 15-T), Social Security, Medicare, all 50 states + DC, 401(k) and health deductions, plus employer cost.Calculator - No.04
Self-Employment Tax Calculator (2026)
Estimate 2026 self-employment tax (Social Security and Medicare), the half-SE deduction, federal income tax, and quarterly estimated payments from net profit.Calculator - No.05
Hourly to Salary Calculator
Convert an hourly rate to an annual salary or a salary back to hourly. See weekly, biweekly, semimonthly, and monthly pay, with overtime and unpaid weeks.Calculator
Pricing
- No.02
Profit Margin Calculator
Calculate profit margin, gross profit, and markup instantly. Or work backwards to find the selling price or maximum cost for a target margin.Calculator - No.03
Markup Calculator
Calculate selling price from cost and markup, find your markup percentage from cost and price, or work back to a maximum cost. With a markup-to-margin table.Calculator
Loans
- No.06
Business Loan Calculator
Calculate a business loan payment (monthly or weekly), total interest, effective APR with origination fees, and payoff date, with a full amortization schedule.Calculator - No.07
SBA Loan Calculator
Estimate SBA 7(a), 504, Express, and Microloan payments with current maximum rates (Prime 7.00%), the FY2027 guarantee fee, total interest, and effective APR.Calculator