Accounting & Finance Tools
Practical calculators for tax, profitability, funding, and everyday finance work.
17 tools
VAT Calculator (Add/Remove)
Convert between net and gross amounts and isolate VAT at a chosen rate.
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Sales Tax Calculator
Calculate tax amount and totals for invoices with sales tax.
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Withholding Tax Calculator
Estimate withholding tax and net payment for a vendor invoice.
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Gross Margin Calculator
Compute gross profit and gross margin from revenue and COGS.
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Markup Calculator
Calculate markup percentage from cost and selling price.
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Break-Even Point Calculator
Estimate break-even units and break-even revenue using contribution margin.
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Net Present Value (NPV) Calculator
Discount future cash flows to evaluate investment value today.
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Internal Rate of Return (IRR) Calculator
Estimate the discount rate at which the project NPV equals zero (bisection method).
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Compound Interest Calculator
Compute future value with compounding and total interest earned.
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Simple Interest Calculator
Compute future value using simple (non-compounding) interest.
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Loan Payment Calculator
Estimate monthly payment using standard amortization math.
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Cash Runway Calculator
Estimate how many months cash will last given an average monthly burn.
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Straight-Line Depreciation
Calculate annual depreciation from cost, salvage value, and useful life.
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Double-Declining Balance Depreciation
Generate a depreciation schedule using double-declining balance (with salvage floor).
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Working Capital & Current Ratio
Compute working capital and current ratio from current assets and liabilities.
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Quick Ratio Calculator
Compute quick ratio (acid-test) by excluding inventory from current assets.
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Debt-to-Equity Ratio
Compare total liabilities to total equity to gauge leverage.
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