Miles per Hour to Miles per Day (mph → mi/d)
Formula
1 mph = 24 mi/dConversion Table
| mph | mi/d |
|---|---|
| 0 | 0 |
| 1.0000 | 24.000 |
| 2.0000 | 48.000 |
| 3.0000 | 72.000 |
| 4.0000 | 96.000 |
| 5.0000 | 120.00 |
| 6.0000 | 144.00 |
| 7.0000 | 168.00 |
| 8.0000 | 192.00 |
| 9.0000 | 216.00 |
| 10.000 | 240.00 |
| 11.000 | 264.00 |
| 12.000 | 288.00 |
| 13.000 | 312.00 |
| 14.000 | 336.00 |
| 15.000 | 360.00 |
| 16.000 | 384.00 |
| 17.000 | 408.00 |
| 18.000 | 432.00 |
| 19.000 | 456.00 |
| mph | mi/d |
|---|---|
| 20.000 | 480.00 |
| 21.000 | 504.00 |
| 22.000 | 528.00 |
| 23.000 | 552.00 |
| 24.000 | 576.00 |
| 25.000 | 600.00 |
| 26.000 | 624.00 |
| 27.000 | 648.00 |
| 28.000 | 672.00 |
| 29.000 | 696.00 |
| 30.000 | 720.00 |
| 31.000 | 744.00 |
| 32.000 | 768.00 |
| 33.000 | 792.00 |
| 34.000 | 816.00 |
| 35.000 | 840.00 |
| 36.000 | 864.00 |
| 37.000 | 888.00 |
| 38.000 | 912.00 |
| 39.000 | 936.00 |
| mph | mi/d |
|---|---|
| 40.000 | 960.00 |
| 41.000 | 984.00 |
| 42.000 | 1,008.0 |
| 43.000 | 1,032.0 |
| 44.000 | 1,056.0 |
| 45.000 | 1,080.0 |
| 46.000 | 1,104.0 |
| 47.000 | 1,128.0 |
| 48.000 | 1,152.0 |
| 49.000 | 1,176.0 |
| 50.000 | 1,200.0 |
| 51.000 | 1,224.0 |
| 52.000 | 1,248.0 |
| 53.000 | 1,272.0 |
| 54.000 | 1,296.0 |
| 55.000 | 1,320.0 |
| 56.000 | 1,344.0 |
| 57.000 | 1,368.0 |
| 58.000 | 1,392.0 |
| 59.000 | 1,416.0 |
| mph | mi/d |
|---|---|
| 60.000 | 1,440.0 |
| 61.000 | 1,464.0 |
| 62.000 | 1,488.0 |
| 63.000 | 1,512.0 |
| 64.000 | 1,536.0 |
| 65.000 | 1,560.0 |
| 66.000 | 1,584.0 |
| 67.000 | 1,608.0 |
| 68.000 | 1,632.0 |
| 69.000 | 1,656.0 |
| 70.000 | 1,680.0 |
| 71.000 | 1,704.0 |
| 72.000 | 1,728.0 |
| 73.000 | 1,752.0 |
| 74.000 | 1,776.0 |
| 75.000 | 1,800.0 |
| 76.000 | 1,824.0 |
| 77.000 | 1,848.0 |
| 78.000 | 1,872.0 |
| 79.000 | 1,896.0 |
Miles per Hour to Miles per Day Conversion
Converting Miles per Hour (mph) to Miles per Day (mi/d) is a common speed conversion. 1 mph equals 24 mi/d. For example, 100 mph is equal to 2,400 mi/d.
Quick Mental Math: Miles per Hour to Miles per Day
Multiply by 24: 10 miles per hour = 239 miles per day.
Why is converting Miles per Hour to Miles per Day tricky?
Decimal multipliers introduce rounding errors in mental math.
Quick Reference Values
1 mph = 24 mi/d. 5 mph = 120 mi/d. 10 mph = 240 mi/d. 25 mph = 600 mi/d. 50 mph = 1,200 mi/d. 100 mph = 2,400 mi/d.
What is Miles per Hour?
Miles per Hour (mph) is a unit of speed. Miles per hour measure speed as miles traveled in one hour. One mile equals 1,609.344 meters, so 1 mph equals approximately 0.44704 meters per second [bipm-si-brochure]. This unit is widely used for vehicle speed and speed limits in non-metric countries. Miles per hour originated from the mile and hour units standardized in the British Imperial system. It became common in transportation with the rise of automobiles and was internationally recognized with the mile's 1959 definition [bipm-si-brochure]. The USA, United Kingdom, and several Commonwealth nations use mph for road speed limits and vehicle speeds. It remains standard in aviation and motorsports within these countries, despite metrication efforts [nist-sp-811].
What is Miles per Day?
Miles per Day (mi/d) is a unit of speed. Miles per day quantify speed as the number of miles traveled within one day. One mile equals 1,609.344 meters, so miles per day can be converted to meters per second by dividing the total meters by 86,400 seconds in a day [bipm-si-brochure]. This unit measures slow or long-term average speeds. This unit evolved from the mile and day units standardized for length and time. It is commonly used in transport planning and animal migration studies to express average daily travel distances, based on the mile defined in 1593 and the day as a standard SI time unit [bipm-si-brochure]. Miles per day are used in logistics, transportation, and wildlife research, especially in the USA and UK. It helps quantify long-term movement rates where finer time units are impractical, aligning with customary mile usage [nist-sp-811].
Common Misspellings
People often search for this conversion using these alternate spellings: miles per hour, mile per hour, mi/h, mphs, miles per day, mile per day, miles/day, miles a day. All of these refer to the Miles per Hour to Miles per Day conversion.