BUSINESS
Small-business calculators
Model break-even volume, gross margin, invoice totals and cash runway with straightforward arithmetic.
Business
Business break-even
Find how many units cover fixed costs.
Open calculator BusinessMarkup and margin
Calculate gross profit margin from cost and price.
Open calculator BusinessInvoice total
Add tax and discount to an invoice.
Open calculator BusinessBusiness cash runway
Estimate how long available cash covers net spending.
Open calculatorGUIDES
Understand the assumptions
Business guide
Break-even analysis for small businesses: the contribution-margin view
Learn how fixed costs, variable cost and selling price determine the unit volume required to break even.
Read guide →Business guideGross margin vs markup: stop mixing the two percentages
A simple explanation of two commonly confused pricing measures and how each changes pricing decisions.
Read guide →Business guideCash runway: the survival metric that revenue alone cannot replace
Use net cash burn to estimate how long available cash can support a business under current assumptions.
Read guide →