Business & Ecommerce Calculators

Add sales tax to any amount and see the tax and total instantly.

See exactly what PayPal's fees cost you on a payment — and what to charge so you receive the full amount.

Calculate cost per thousand impressions (CPM) for your advertising campaigns.

Calculate the commission on a sale and the net amount after commission — for agents, brokers and sales teams.

Calculate gross profit margin and markup from your revenue and cost.

Find the selling price and profit when you add a markup percentage to your cost.

Calculate customer lifetime value (LTV) from ARPU, gross margin and churn — the core unit economic for any subscription business.

Calculate Return On Ad Spend (ROAS) to measure the efficiency of your advertising.

Calculate Stripe's processing fee on any payment and the gross amount to charge so you net your target.

Work out how many units you need to sell to cover your fixed and variable costs.

Calculate average order value — total revenue divided by orders — the fastest lever for ecommerce profitability.

Calculate conversion rate from visitors and conversions — for landing pages, stores and ad campaigns.

Find how long an investment takes to pay for itself from its monthly cash flows.

Add VAT to a net price (or see the VAT portion of a total) at any rate — 20% UK standard by default.

Calculate customer acquisition cost: total sales and marketing spend divided by new customers won in the same period.

Calculate your customer churn rate and the retention rate and average customer lifetime it implies.

Find the hourly rate you should charge to hit your income goal, accounting for non-billable time.

Calculate how many months of runway your startup has at the current burn rate — and when to start fundraising.

Set a target markup and instantly see the selling price and resulting margin.