Free calculators for
small business decisions
Plan website costs, marketing budgets, profit margins, project quotes, and more with simple business calculators. No sign-ups required.
Featured Business Calculators
View All 30 CalculatorsWebsite Cost Calculator
Estimate the custom design and development cost for your new website based on pages, eCommerce needs, and features.
SEO ROI Calculator
Calculate the potential return on investment (ROI) of your search engine optimization (SEO) campaign based on traffic and conversions.
Profit Margin Calculator
Quickly find your gross profit and profit margin percentage based on your revenue and cost of goods sold.
Break-Even Calculator
Find out how many units of a product or service you need to sell to cover your fixed and variable costs.
Freelance Hourly Rate Calculator
Determine what hourly rate you need to charge to reach your desired annual income, covering expenses and time off.
Project Quote Calculator
Estimate project quotes for clients using expected hours, hourly rate, and safety buffers for revisions.
Built by DevDendevden.caNeed a Custom Business Tool?
DevDen builds practical websites, calculators, dashboards, and automation tools for small businesses.
Why use interactive calculators for your business?
Running a business requires constant estimation and analysis. Our clean, simple tools remove the guesswork so you can proceed with confidence.
Make Fast Decisions
Instead of fiddling with spreadsheets or complex accounting programs, get instant numbers for quotes, markups, ad spend, and cost estimates.
Ensure Profitability
Calculate break-even volumes, profit margins, and markup rates to ensure your client agreements, product prices, and service offers remain lucrative.
Plan Marketing ROI
Evaluate conversion rates, CPC limits, and expected sales returns before running Google Ads campaigns or commissioning long-term SEO campaigns.