1. What is the Feet per Second to MPH Conversion?

The feet per second to miles per hour conversion is a common calculation used in physics, engineering, and sports to convert between these two units of speed measurement. MPH is the standard speed measurement used in the United States for road vehicles.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• \( Distance \) — Distance traveled in feet
• \( Time \) — Time taken in seconds
• \( 0.681818 \) — Conversion factor from ft/s to mph

Explanation: The formula first calculates speed in feet per second (distance divided by time), then converts it to miles per hour using the conversion factor.

3. Importance of Speed Conversion

Details: Converting between different speed units is essential when working with data from different measurement systems or when comparing speeds measured in different units.

4. Using the Calculator

Tips: Enter distance in feet and time in seconds. Both values must be positive numbers. The calculator will compute the equivalent speed in miles per hour.

5. Frequently Asked Questions (FAQ)

Q1: Why is the conversion factor 0.681818?
A: This comes from the ratio between feet and miles (1 mile = 5280 feet) and seconds to hours (1 hour = 3600 seconds). The exact value is 3600/5280 = 0.681818.

Q2: What are typical feet per second values?
A: Human walking speed is about 4-5 ft/s (2.7-3.4 mph), running speed 10-15 ft/s (6.8-10.2 mph), and highway speed 88 ft/s = 60 mph.

Q3: Can I use this for any distance and time?
A: Yes, as long as distance is in feet and time is in seconds, the formula works for any positive values.

Q4: How accurate is this conversion?
A: The conversion is mathematically exact. Any inaccuracy would come from measurement errors in your distance or time values.

Q5: What if I need to convert mph back to ft/s?
A: Multiply mph by 1.46667 (the reciprocal of 0.681818) to get feet per second.