Gombo Tools

Gombo Calculators

Business calculators

Free calculators to estimate taxes, margins, break-even points, costs, runway, and other business numbers.

All calculators

Tax

VAT Calculator

Calculate VAT, tax-exclusive amounts, and tax-inclusive totals.

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Tax

HT/TTC Calculator

Convert between amounts excluding tax and including tax.

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Pricing & margins

Margin Calculator

Calculate margin, markup, cost price, and selling price.

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Pricing & margins

Markup Calculator

Calculate selling price, profit amount, markup percentage, and margin.

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Pricing & margins

Break-even Calculator

Estimate how much you need to sell before your business breaks even.

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Inventory

COGS Calculator

Calculate cost of goods sold and understand product costs.

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Inventory

Reorder Point Calculator

Calculate lead time demand and reorder point from demand, supplier lead time, and safety stock.

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Inventory

Average Inventory Calculator

Estimate average stock value from beginning and ending inventory for turnover and purchasing analysis.

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Inventory

Inventory Turnover Calculator

Estimate stock turnover, average inventory, and days inventory outstanding.

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Inventory

FIFO/LIFO Calculator

Compare FIFO and LIFO COGS, ending inventory, and stock layer consumption.

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Finance & cash flow

Runway Calculator

Estimate how long your cash can support your business operations.

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Finance & cash flow

Net Profit Margin Calculator

Calculate net profit and net profit margin from revenue and total costs.

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Finance & cash flow

ROI Calculator

Calculate net gain, total ROI, and annual ROI for an investment.

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