Business Tools

Free small-business and accounting calculators that run entirely in your browser — invoice totals, sales commission, mileage reimbursement, economic order quantity, inventory turnover, reorder point, PTO accrual, labor burden, COGS, burn rate, EBITDA, working capital and DSO. Nothing is uploaded.

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Invoice Total Calculator

Add line items, discount, tax and shipping to get an invoice grand total, subtotal and tax — printable and copyable.

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Sales Commission Calculator

Calculate sales commission by flat rate, marginal tiers, base plus commission, or a cap — with total pay and effective rate.

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Mileage Reimbursement Calculator

Calculate mileage reimbursement from miles driven and editable cents-per-mile rates for business, medical or charity trips.

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Economic Order Quantity (EOQ) Calculator

Find the economic order quantity that minimizes total inventory cost from annual demand, ordering cost and holding cost.

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Inventory Turnover Ratio Calculator

Calculate inventory turnover ratio and days sales in inventory from COGS and beginning and ending inventory.

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Reorder Point & Safety Stock Calculator

Calculate reorder point and safety stock from average daily usage, lead time, demand variability and service level.

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PTO / Vacation Accrual Calculator

Calculate your current PTO or vacation balance from an accrual rate, hours worked or pay periods, starting balance and time used.

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Labor Burden / True Employee Cost Calculator

Find an employee's fully-loaded annual cost, burden rate and true hourly cost from wages, taxes, benefits and overhead.

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Billable Hours & Utilization Rate Calculator

Calculate your utilization rate, effective hourly rate and billable-to-available ratio from billable and total hours.

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Cost of Goods Sold (COGS) Calculator

Compute cost of goods sold from inventory and purchases, plus gross profit and gross margin when you add revenue.

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Burn Rate & Cash Runway Calculator

Find your monthly net burn, cash runway in months and projected out-of-cash date from cash, expenses and revenue.

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EBITDA & Margin Calculator

Calculate EBITDA and EBITDA margin from net income, interest, taxes, depreciation and amortization, plus EBIT.

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Working Capital & Liquidity Ratio Calculator

Compute working capital, the current ratio and quick ratio (acid test) from current assets, liabilities and inventory.

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Days Sales Outstanding (DSO) Calculator

Calculate DSO from receivables and credit sales, plus DIO, DPO and the cash conversion cycle when you add details.

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