Business Days Calculator

The Business Days Calculator automatically counts the working days between two dates, or projects a future date from a given number of business days, skipping weekends and all Brazilian national holidays. The calculation includes movable holidays such as Carnival, Easter, and Corpus Christi, computed with precision for any year.

The tool offers two modes. In "Between two dates" mode, you enter the start and end date and the result shows how many business days fall within that range. In "Add business days" mode, you start from a date and enter how many business days to advance; the tool calculates the resulting date, automatically skipping weekends and holidays.

Professionals who work with legal and contractual deadlines use this calculator to count procedural deadlines, set invoice and bill due dates, plan project deliveries, calculate the seven-business-day return period for online purchases, and verify payment dates in contracts with business-day clauses. It is also useful for HR when calculating notice periods, and for teachers and students checking academic deadlines.

All processing happens in the browser, including the dynamic calculation of holidays. No data is sent to servers. Works on computers, tablets, and phones without registration.