Gombo Calculators
Business calculators
Free calculators to estimate taxes, margins, break-even points, costs, runway, and other business numbers.
Popular calculators
Tax
VAT Calculator
Calculate VAT, tax-exclusive amounts, and tax-inclusive totals.
Use calculator →Pricing & margins
Margin Calculator
Calculate margin, markup, cost price, and selling price.
Use calculator →Pricing & margins
Break-even Calculator
Estimate how much you need to sell before your business breaks even.
Use calculator →All calculators
Tax
VAT Calculator
Calculate VAT, tax-exclusive amounts, and tax-inclusive totals.
Use calculator →Tax
HT/TTC Calculator
Convert between amounts excluding tax and including tax.
Use calculator →Pricing & margins
Margin Calculator
Calculate margin, markup, cost price, and selling price.
Use calculator →Pricing & margins
Markup Calculator
Calculate selling price, profit amount, markup percentage, and margin.
Use calculator →Pricing & margins
Break-even Calculator
Estimate how much you need to sell before your business breaks even.
Use calculator →Inventory
COGS Calculator
Calculate cost of goods sold and understand product costs.
Use calculator →Inventory
Reorder Point Calculator
Calculate lead time demand and reorder point from demand, supplier lead time, and safety stock.
Use calculator →Inventory
Average Inventory Calculator
Estimate average stock value from beginning and ending inventory for turnover and purchasing analysis.
Use calculator →Inventory
Inventory Turnover Calculator
Estimate stock turnover, average inventory, and days inventory outstanding.
Use calculator →Inventory
FIFO/LIFO Calculator
Compare FIFO and LIFO COGS, ending inventory, and stock layer consumption.
Use calculator →Finance & cash flow
Runway Calculator
Estimate how long your cash can support your business operations.
Use calculator →Finance & cash flow
Net Profit Margin Calculator
Calculate net profit and net profit margin from revenue and total costs.
Use calculator →Finance & cash flow
ROI Calculator
Calculate net gain, total ROI, and annual ROI for an investment.
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