About DateWizardTools
DateWizardTools is a free collection of online date calculators, business day calculators, countdown tools, age calculators, and timeline planning tools.
Our mission is to provide the most accurate and easy-to-use date calculation tools on the web. Whether you need to calculate the number of business days between two dates, find out how many days until your next vacation, or plan a project timeline — we have a tool for that.
Our Tools
We offer 28 free tools across 5 categories:
- Date Calculators — Add/subtract days, calculate differences between dates, check leap years.
- Business Date Tools — Business day calculations, Net 30/60/90, invoice and contract date tools.
- Countdown Tools — Count down to any date, holiday, vacation, or event.
- Age & Life Calculators — Age calculator, birthday tools, days alive, retirement countdown.
- Planning Tools — Project timelines, school day calculator, pregnancy due date, milestone planner.
Our Promise
- 100% free with no registration
- All calculations happen in your browser — your data stays private
- Accurate date math with leap year and month-length support
- Works on all devices
About the Creator
DateWizardTools was created by Mike Starr, a web developer and toolmaker focused on building practical, no-nonsense utility websites. Mike builds tools he would use himself — fast, accurate, and free of clutter.
Part of the Wizard Tools Network
DateWizardTools is one of several free educational utility websites built and maintained by Mike Starr. Each site in the network covers a distinct subject area:
- TextWizardTools.com — Free text analysis, writing, and productivity tools.
- DateWizardTools.com — Free date, time, age, and scheduling calculators.
- FinanceWizardTools.com — Free personal finance and business financial calculators.
- StackedTomorrow.com — Free investing, retirement, FIRE, and wealth-building calculators.
- MortgageWizardTools.com — Free mortgage, affordability, refinance, and home-buying calculators.
- CryptoWizardTools.com — Educational cryptocurrency resources, guides, and terminology.
- ConversionWizardTools.com — Free unit, measurement, and conversion tools.
- ChartWizardTools.com — Educational resource for learning to read charts — candlesticks, patterns, indicators, and technical analysis for any market.
Each site is independent and focused on its own subject area. All tools across the network are free to use with no registration required.