Date Calculator

Welcome to the Online Date Calculator — a quick and accurate tool to calculate the difference between two dates, add or subtract days, or find the exact day of the week. Simply choose your calculation mode, enter the date or number of days, and get instant results with complete accuracy. Whether you’re planning events, tracking deadlines, or calculating age and durations, this tool makes date math simple and reliable. Perfect for students, professionals, and planners who need fast and precise date calculations — all completely free and online!