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Business calculators

Margins, pricing, marketing ROI, ad costs, payment fees and investment returns for small businesses and freelancers.

  • 28 calculators
  • Free, no sign-up
  • Instant results
28 calculators

Pricing, fees & profit

Margins, break-even, commission, payment fees and what to charge.

Profit margin calculatorMargin, markup and price from any two values, with tax, fees, discounts and net margin.Open calculator Break-even calculatorUnits and sales to cover your costs, margin of safety, target profit, the price you need and a sales mix, with a chart.Open calculator Freelance rate calculatorThe hourly and day rate to charge for the income you want, after costs, tax, time off and admin, plus a project quote.Open calculator Commission calculatorCommission from sales and rate, sales or rate needed, tiered plans, quota and accelerators, splits, base salary and draws.Open calculator Markup calculatorSelling price, markup and profit from any two values, with the matching margin, sales tax or VAT, price endings like .99, bulk totals and supply-chain markups.Open calculator Price elasticity calculatorPrice elasticity of demand by the midpoint and simple % methods, elastic or inelastic, revenue before and after, point elasticity, revenue- and profit-maximising prices, sales after a price change, plus cross-price and income elasticity.Open calculator PayPal & Stripe fee calculatorPayPal fees by country, what you receive and what to ask for, with Stripe side by side, international and currency fees and monthly totals.Open calculator

Marketing & growth

Ad costs, conversion rates and customer value.

CPM, CPC & CTR calculatorCPM, CPC, CTR, CPA, conversion rate and ROAS from any two or three ad numbers, with budget planning, a funnel and blog or YouTube earnings.Open calculator ROAS calculatorReturn on ad spend as × and %, break-even and target ROAS from your margin, the most you can pay per sale, ROAS vs ROI after refunds and fees, repeat-purchase break-even, a budget planner and up to 4 campaigns compared.Open calculator Customer lifetime value (LTV) calculatorLifetime value for a shop or a subscription, with LTV:CAC, CAC payback, churn, discount rate and what-ifs.Open calculator Conversion rate & A/B test calculatorConversion rate and revenue impact, A/B test significance with p-value and confidence interval, sample size and test length, and funnel drop-off.Open calculator Churn rate calculatorCustomer churn and retention rate for a month, quarter or year, monthly to annual churn done properly, customer lifetime, revenue churn and NRR, LTV and a customer forecast.Open calculator Customer acquisition cost (CAC) calculatorCAC from spend ÷ new customers, with spend broken down, blended vs paid CAC, up to 6 channels, LTV:CAC, CAC payback, a target CAC and a budget planner.Open calculator

Investment & returns

ROI, NPV, IRR and payback.

ROI calculatorReturn on investment and annualised ROI, with fees, tax, payback, a target ROI, marketing ROI and ROAS, and up to three investments compared.Open calculator NPV & IRR calculatorNPV, IRR, MIRR, profitability index and payback from yearly, quarterly or monthly cash flows, with dated XNPV / XIRR, an NPV profile and two projects compared.Open calculator Working capital calculatorWorking capital and the current ratio, with itemised assets and debts for the quick ratio, cash ratio, working capital turnover, the change since last period and its cash effect, and the cash conversion cycle.Open calculator Payback period calculatorHow long until an investment pays for itself: equal or uneven yearly or monthly cash flows, discounted payback, growth, a cumulative cash flow chart and NPV, IRR and profitability index.Open calculator Startup Runway and Burn Rate CalculatorGross and net burn, months of runway and the run-out date, with revenue and cost growth, planned hires, a fundraise, default alive or dead and what to cut or raise for a target runway.Open calculator Startup Equity Dilution CalculatorYour ownership after a funding round: post-money, investor stake, price per share and new shares, with up to 4 founders, an option pool shuffle, SAFEs and convertible notes with cap and discount, up to 6 rounds, a cap table and an exit split.Open calculator Depreciation calculatorAsset depreciation schedule by straight-line, declining balance (any rate, 150%, double), sum-of-the-years' digits or units of production, with a part first year and methods compared.Open calculator Late payment interest calculatorInterest on an overdue invoice: days late, interest a day and in total at your contract rate, 365/360/actual days, monthly compounding, late fees, a grace period, part payments, several invoices and a reminder-email line.Open calculator

Stock & operations

Inventory, ordering, staff and running costs.

EOQ calculatorEconomic order quantity, orders a year and stock costs, with reorder point, safety stock, price breaks, EPQ and pack sizes.Open calculator Reorder point & safety stock calculatorWhen to reorder: reorder point and safety stock by max-minus-average, service level or lead-time variation, with days of stock left, the reorder date and a stock chart.Open calculator Inventory turnover calculatorInventory turnover ratio and days inventory outstanding from COGS and average stock, with several counts, sales or units, a target turnover, cash freed and the cash conversion cycle.Open calculator Cost of goods sold (COGS) calculatorCOGS from opening stock, purchases and closing stock, with freight, returns, discounts, labour and overhead, a per-unit method, FIFO vs LIFO vs weighted average from purchase lots, gross profit and margin, and inventory turnover.Open calculator OEE calculatorOverall equipment effectiveness from planned time, downtime, ideal cycle time and counts: availability, performance and quality, with a shift builder, downtime reasons, the six big losses, TEEP and the good count for a target OEE.Open calculator Volumetric weight calculatorDimensional and chargeable weight for couriers and air cargo, with divisor presets, several boxes, rounding, cost per kg and sea freight CBM and W/M.Open calculator Employee cost calculatorThe true yearly, monthly and hourly cost of an employee: salary plus the employer contributions, bonus, allowances, equipment, office, training and recruitment you enter, with cost per billable hour, the rate for a target margin and up to 3 hires compared.Open calculator

About the Business calculators

Calculators for small businesses, freelancers and founders: profit margin and markup, your break-even point, a freelance rate that covers your costs, sales commission, and what payment platforms such as PayPal and Stripe take in fees.

Marketing tools work out CPM, CPC and CTR, customer lifetime value, churn and whether an A/B test result is real. Finance tools cover ROI, NPV and IRR, payback period, depreciation, working capital and how many months of runway you have at your current burn rate. Stock tools find the economic order quantity, the reorder point and safety stock, and the courier volumetric weight of a parcel.

Results are for planning and decisions. Ask an accountant before you rely on them for tax or your accounts.