Useful tools. Free, with the methods shown.

Which free calculator should you use?

Start with the decision you actually need to make. If you are planning a new site, use the website cost calculator to compare the scope of a simple business website, an online shop and a more complex application. It separates the starting development estimate from optional features and explains the assumptions behind the numbers. An estimate is a planning range, not a binding quote: hosting, content creation, integrations and later maintenance can affect the final scope.

If your team spends hours repeating routine tasks, use the AI automation savings calculator first. Record how much time a workflow takes now, how frequently it happens and the approximate hourly value of that time. The tool models a partial time saving rather than pretending all work disappears. Include implementation and ongoing tool costs before deciding whether automation will pay for itself. Human approval remains important for unusual cases, customer complaints and financial decisions.

If leads arrive but jobs keep going to faster competitors, use the cost of lost leads calculator. Enter your monthly leads, what one customer is worth and your typical first response time, and it estimates the customers and revenue the delay may be costing you, using a published response-time model with its sources on the page. It is an estimate to size a problem, not a measurement: if the gap is large, measure your real response times for a month before spending on more advertising.

For shift planning, freelance work or everyday scheduling, the time calculator works differently: it adds and subtracts durations or calculates the elapsed time between two clock readings. It can handle overnight intervals, but it is not a payroll system or a time-zone converter. Check any legal break, overtime or payroll rules separately.

What these results mean—and what they do not

Each calculator runs without requiring a subscription to view its initial result. Enter approximate numbers when you are exploring an idea, then replace them with actual business figures before acting. For example, a business spending five hours each week copying customer enquiries between applications could estimate the monthly time cost and compare it with the price of a connected workflow. The final decision should also consider reliability, training, access permissions and the time needed to maintain the process.

These are educational decision-support tools, not guaranteed financial returns or tailored legal advice. Keep a copy of your assumptions, compare alternatives and revisit the estimate if the project changes. When you want a human assessment of a specific scope, you can discuss your project directly.