Free financial tools

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Run a quick finance calculation in your browser. Check the inputs and assumptions, then use the tool’s prompt to investigate the result in Claude, ChatGPT, Gemini, Grok, or Muse.

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Tool library

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01

Cash flow

2 tools
Burn rate Estimate average monthly net cash burn and how many months of runway remain. Days sales outstanding Estimate the average number of days it takes to collect credit sales.
02

Profitability

5 tools
Average fixed cost Divide fixed costs by units produced or delivered in the same period. Gross margin Calculate gross profit, gross margin, and markup from net revenue and cost of goods sold. Net income Build a simple income statement from net revenue through estimated net income. EBITDA Estimate EBITDA from operating profit, depreciation, and amortization. Net sales Adjust gross sales for returns, allowances, and discounts.
03

Operations

3 tools
Cost of goods sold Estimate merchandise cost of goods sold from inventory balances and net purchases. Customer churn Calculate monthly customer churn and a simple lifetime estimate. Straight-line depreciation Estimate full-year straight-line book depreciation from cost, residual value, and useful life.
04

Ratios

3 tools
Debt to equity Compare total liabilities with owner or shareholder equity. Current ratio Compare current assets with current liabilities from the same balance sheet. Debt service coverage Compare lender-defined annual income with required annual debt payments.
05

Planning

3 tools
Capital gain Estimate a gain or loss from gross sale price, adjusted basis, and selling costs. 401(k) projection Project a retirement account balance from a current balance and regular contributions. 1099 net earnings Estimate net self-employment earnings and a simplified self-employment tax reserve.

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