Time • NIST Exact

Hours Minutes

h → min

1 h = 60 minNIST Exact

h → min Reference Table

h min
0.01 h 0.6 min
0.1 h 6 min
0.5 h 30 min
1 h 60 min
2 h 120 min
5 h 300 min
10 h 600 min
20 h 1200 min
50 h 3000 min
100 h 6000 min
500 h 30000 min
1000 h 60000 min

Values based on NIST SP 811 conversion factors

🌍 Real-World Examples

A typical feature film

2 h = 120 min

Average marathon finishing time

4 h = 240 min

A standard workday

8 h = 480 min

A typical football (soccer) match

1.5 h = 90 min

A short lunch break

0.5 h = 30 min

Why Convert Hours to Minutes?

Converting between hours (h) and minutes (min) is one of the most common time conversions. Whether for engineering, cooking, travel, or science, knowing how to quickly convert h to min saves time and prevents errors.

Time conversions between h and min are fundamental in project management, cooking, fitness, and daily scheduling. Project managers convert between hours, days, and weeks when planning sprints and estimating delivery timelines. Cooking recipes specify times in minutes or hours depending on the technique. In fitness, interval training requires precise conversions between minutes, seconds, and sometimes hours for endurance events like marathons.

How to Convert Hours to Minutes

To convert hours to minutes, use the following formula:

min = h × 60

Example: 1 h = 60 min

For example, 5 h = 300 min, 10 h = 600 min, and 100 h = 6000 min. Our calculator above performs this conversion instantly with full precision — no rounding errors.

Common Use Cases

  • A typical feature film: 2 h = 120 min
  • Average marathon finishing time: 4 h = 240 min
  • A standard workday: 8 h = 480 min
  • A typical football (soccer) match: 1.5 h = 90 min
  • A short lunch break: 0.5 h = 30 min

Common Mistakes to Avoid

  • Month/year ambiguity: "1 month" varies from 28 to 31 days. For precise calculations, always specify the exact number of days.
  • Leap year errors: Don't assume 1 year = 365 days. For multi-year calculations, account for leap years (avg = 365.2425 days).
  • Time zone confusion: When scheduling across time zones, always specify UTC offset. "3 PM" means different things in different countries.

Pro Tips

  • Memorize the factor: 1 h = 60 min. For quick mental math, remember this base conversion.
  • Quick reference: 5 h = 300 min · 10 h = 600 min · 25 h = 1500 min · 50 h = 3000 min · 100 h = 6000 min
  • Bookmark this page: Save this converter for instant access. It works offline once loaded — no internet needed.

Hours to Minutes Conversion Table

hmin
0.01 h0.6 min
0.1 h6 min
0.5 h30 min
1 h60 min
2 h120 min
5 h300 min
10 h600 min
20 h1200 min
50 h3000 min
100 h6000 min
500 h30000 min
1000 h60000 min

All values in this table are mathematically exact per NIST SP 811.

Frequently Asked Questions

How many minutes are in 1 hour?

1 h equals 60 min. This is an exact conversion factor defined by NIST.

How do I convert hours to minutes?

Multiply the value in h by the conversion factor. For example, 10 h = 600 min. Use our calculator above for instant results.

Is the hours to minutes conversion exact?

Yes, this conversion is mathematically exact based on the international definition of these units (NIST SP 811).

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