20 free calculators · 100% Free · No Signup
Free Small Business Calculators
Pricing, payroll, taxes, SaaS metrics, cash flow — every calculation a small business owner needs, in one clean place.
✓ 100% Free✓ No Signup✓ No Ads✓ Instant Results
Browse by Category
★ Most Popular
📈
Pricing
Profit Margin
Calculate gross margin and net margin from revenue and costs.
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★ Most Popular
⚖️
Pricing
Break-Even
Find break-even point in units and revenue from fixed and variable costs.
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🏷️
Pricing
Markup
Convert between markup and margin and calculate selling price from cost.
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📄
Operations
Invoice Generator
Build a professional invoice and download it as a printable PDF.
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🧾
Tax
Sales Tax
Calculate US state sales tax on any purchase amount.
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🍽️
Operations
Tip
Split the bill and tip between any number of people.
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⏱️
Payroll
Hourly ↔ Salary
Convert hourly rate to annual salary and salary to hourly rate.
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💼
Payroll
Freelance Rate
Work out the hourly rate you need to charge to hit your target income.
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🏦
Finance
Business Loan
Monthly payment, total interest, and full amortization for any business loan.
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★ Most Popular
📊
Finance
ROI
Measure return on investment for marketing spend, equipment, or any project.
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👥
Payroll
Employee Cost
Calculate the fully-loaded cost of a hire including taxes, benefits, and overhead.
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💵
Finance
Cash Flow
Project monthly cash flow with income and expense categories.
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📦
Operations
Inventory Turnover
Inventory turns, days of inventory, and reorder timing for retail and ecommerce.
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❤️
SaaS
Customer LTV
CLV for subscription and one-time businesses with retention modeling.
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📉
SaaS
Churn Rate
Monthly churn rate, annual churn, and revenue impact projections.
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🔁
SaaS
MRR
Track MRR with growth projections and churn modeling.
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💎
Pricing
Pricing
Optimal price point from costs, target margin, and competitor anchors.
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📋
Tax
Quarterly Tax
Quarterly estimated tax payments for self-employed and freelance income.
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🚀
Finance
Runway
How many months until the cash runs out, based on burn rate and revenue.
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🎯
Operations
Revenue/Employee
Revenue per employee benchmarking against industry standards.
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