Converting Days to Hours
Days to hours conversion gives you a precise count of time remaining or elapsed. When countdowns matter or when comparing durations, hours provide granular detail that days cannot.
The conversion: 1 day = 24 hours. Multiply days by 24 to get hours.
When Hours Matter More
- Event countdowns - "Only 72 hours left!" sounds more urgent than "3 days"
- Shipping tracking - Precise delivery windows
- Sale timers - Creating urgency with hour counts
- Medical timing - Medication schedules in hours
- Competition deadlines - Submission cutoffs
Common Conversions
| Days | Hours |
|---|---|
| 0.5 | 12 |
| 1 | 24 |
| 2 | 48 |
| 3 | 72 |
| 7 | 168 |
| 30 | 720 |
How to Convert Days to Hours
Using the Converter
- Enter days (whole or decimal)
- View hours instantly
- Copy for your countdown or timer
The Formula
Hours = Days × 24
Practical Examples
- 5 days: 5 × 24 = 120 hours
- 2.5 days: 2.5 × 24 = 60 hours
- 0.5 days: 0.5 × 24 = 12 hours
Partial Days
For times like "3 days 6 hours":
- Convert 3 days to hours: 3 × 24 = 72
- Add remaining hours: 72 + 6 = 78
- Total: 78 hours
Features
Real-Time Calculation
See hours update instantly as you type days. No waiting for results.
Decimal Support
Enter fractional days like 1.5 for precise hour calculations.
Two-Way Conversion
Swap to convert hours back to days when needed.
Quick Copy
Copy results for use in countdown timers, emails, or scheduling apps.
Reference Table
Common day-to-hour conversions displayed for quick reference.
Universal Access
- Any browser - Chrome, Firefox, Safari, Edge
- Any device - Desktop, tablet, mobile
- Any connection - Works offline once loaded
Frequently Asked Questions
How many hours are in 3 days?
3 days equals 72 hours (3 × 24 = 72).
What is 7 days in hours?
7 days equals 168 hours. This is one full week.
How many hours is half a day?
Half a day (0.5 days) equals 12 hours.
How do I convert 10 days to hours?
10 days equals 240 hours (10 × 24 = 240).
Why do countdowns use hours instead of days?
Hours create more urgency and precision. "72 hours remaining" feels more immediate than "3 days" and helps people plan exact actions.
How many hours in a month?
A 30-day month contains 720 hours. A 31-day month has 744 hours.
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