Small, free tools — and the actual problem each one was built to solve.
Helps you determine the best bedtime by calculating when you'll complete full 90-minute sleep cycles before a desired wake-up time, reducing grogginess upon waking.
Find the estimated date of conception based on a due date or birth date, helping you understand when pregnancy likely began.
Calculates total hours worked between start and end times, including an optional unpaid break deduction, to quickly determine hours for payroll or time tracking.
Calculates the exact number of weeks and remaining days between any two dates – useful for tracking pregnancy weeks, project timelines, or event countdowns.
Converts numerical digits into their written English word form, so users can spell out amounts for checks, invoices, or legal documents without manual errors.
Quickly calculate the number of working days between two dates, excluding weekends and optionally holidays, for project timeline estimation.