Conversor de Dias para Horas
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
h = dias × 24
About this calculator
The Days to Hours Converter is a simple and fast tool for converting days into hours. The conversion is based on the fact that 1 day has 24 hours. Simply enter the number of days, and the calculator returns the equivalent in hours. Ideal for deadline calculations, project planning, travel, or any situation requiring this conversion.
How it works: the formula used is h = days × 24. For example, 3 days equals 72 hours (3 × 24). The tool accepts decimal values, such as 0.5 day (12 hours) or 2.75 days (66 hours). The result is displayed instantly, with no extra clicks needed.
When to use: in everyday situations like calculating work hours over a period, estimating travel time, converting delivery deadlines, or understanding durations in hours. Useful for students and professionals dealing with time, such as engineers, project managers, and event organizers.
Caveats: remember that the conversion assumes 24-hour days. In specific contexts, such as business days or periods with daylight saving time, the result may not be accurate. Double-check that the entered value corresponds to the total number of days, including fractions if necessary.
Frequently asked questions
How many hours are in 1 day?
1 day has 24 hours.
How do I convert 0.5 day to hours?
Multiply 0.5 by 24: 0.5 × 24 = 12 hours.
Does this calculator consider business days?
No, it considers full 24-hour days, regardless of whether it is a business day.
Can I convert hours back to days?
Yes, divide the number of hours by 24 to get the days.
Is the result rounded?
The result is exact, possibly with decimal places if the input days are decimal.