## Conversion Unit of Measurement for Wheel Alignment

I just compiled this information for future reference related to wheel alignment specification. This is extremely useful when attempting to extract wheel alignment data from the car’s owner’s manual.

## Inches to Degrees Conversion guide

Angularity in mils/inch | Angle in degrees | Angle in Radians |

0.1 | 0.006 | 0.0001 |

0.2 | 0.011 | 0.0002 |

0.3 | 0.017 | 0.0003 |

0.4 | 0.023 | 0.0004 |

0.5 | 0.029 | 0.0005 |

0.6 | 0.034 | 0.0006 |

0.7 | 0.04 | 0.0007 |

0.8 | 0.046 | 0.0008 |

0.9 | 0.052 | 0.0009 |

1 | 0.058 | 0.001 |

1.1 | 0.063 | 0.0011 |

1.2 | 0.069 | 0.0012 |

1.3 | 0.074 | 0.0013 |

1.4 | 0.08 | 0.0014 |

1.5 | 0.086 | 0.0015 |

1.6 | 0.092 | 0.0016 |

1.7 | 0.097 | 0.0017 |

1.8 | 0.103 | 0.0018 |

1.9 | 0.109 | 0.0019 |

2 | 0.116 | 0.002 |

2.1 | 0.12 | 0.0021 |

2.2 | 0.126 | 0.0022 |

2.3 | 0.132 | 0.0023 |

2.4 | 0.138 | 0.0024 |

2.5 | 0.143 | 0.0025 |

2.6 | 0.149 | 0.0026 |

2.7 | 0.155 | 0.0027 |

2.8 | 0.16 | 0.0028 |

2.9 | 0.166 | 0.0029 |

3 | 0.172 | 0.003 |

3.25 | 0.186 | 0.00329 |

3.5 | 0.201 | 0.0035 |

3.75 | 0.215 | 0.00375 |

4 | 0.229 | 0.004 |

4.25 | 0.243 | 0.00425 |

4.5 | 0.258 | 0.0045 |

4.75 | 0.272 | 0.00475 |

5 | 0.286 | 0.005 |

## How to convert degrees,minutes,seconds to decimal degrees

One degree is equal to 60 minutes and equal to 3600 seconds:

1° = 60′ = 3600″

One minute is equal to 1/60 degrees:

1′ = (1/60)° = 0.01666667°

One second is equal to 1/3600 degrees:

1″ = (1/3600)° = 2.77778e-4° = 0.000277778°

For angle with d integer degrees m minutes and s seconds:

d° m’ s”

The decimal degrees dd is equal to:

dd = d + m/60 + s/3600

#### Example

Convert 30 degrees 15 minutes and 50 seconds angle to decimal degrees:

30° 15′ 50″

The decimal degrees dd is equal to:

dd = d + m/60 + s/3600 = 30° + 15’/60 + 50″/3600 = 30.263888889°

## Sample Conversion guide of Wheel alignment specification

## What is the formula for converting degrees, minutes, and seconds to decimal degrees? -degree converter formula

When something takes 1 hour and 30 minutes, you usually say it took you an hour and a half. But if something takes 1 hour and 23 minutes, you wouldn’t say it took you 1.38 hours. It’s the same with degrees. You can use decimal degrees, but sometimes it’s clearer to use degrees with minutes and seconds. You can tell them apart by the symbols after the number:

- the degree symbol is

;

`°`

- the symbol for minute is

; and

`'`

- the symbol for second is

.

`"`

## How to convert degrees minutes seconds to decimal degrees? – degree converter formula

How many minutes are in a degree? Just like with hours,

**one degree is equal to sixty minutes**. And one minute has sixty seconds, which means that

**one degree has three thousand six hundred seconds**.

`1° = 60'`

`1' = 60"`

`1° = 3600"`

To convert DMS to decimal degrees all you need to do is use this formula:

`Decimal degrees = Degrees + Minutes / 60 + Seconds / 3600`

Where does this DMS to decimal degrees formula come from? As you now know, 1 degree has 60 minutes. That means that 1 minute is

^{1}/

_{60} of a degree, and 1 second is equal to

^{1}/

_{3600} of a degree.

Let’s look at an example: Convert 67°48’23” to decimal degrees.

This angle has 67 degrees, 48 minutes, and 25 seconds, so input these values into their correct places:

`Decimal degrees = 67° + 48'/60 + 25"/3600 = 67 + 0.8 + 0.00694 = 67.80694° ≈ 67.81°`

Simple, right? If you don’t want to do the calculation by hand, our degrees minutes seconds calculator will do it for you! And, if you need a more precise answer, the fraction to decimal converter might be your lifesaver!

Now, let’s see how to convert decimal degrees to DMS.

## Decimal degrees to DMS – step by step conversion

Converting decimal degrees to degrees with minutes and seconds is slightly more challenging. Let’s take it one step at a time:

- First, take the whole number part – these are the degrees.
- Then, take what’s left and multiply it by sixty. Again, take the whole number from that – these are the minutes.
- Lastly, multiply the rest, again, by sixty. The result is the number of seconds.

To make it easier to understand, let’s look at an example. What is 47.392° in DMS?

- The

from 47.392° is 47, so

`degrees = 47°`

. - The decimal part:

`0.392`

multiplied by

`60`

equals

`23.52`

. Take the integer again –

`minutes = 23'`

. - Take the decimal part of step 2,

`0.52`

, and multiply it by

`60`

. You will get the amount of

`seconds = 31.2"`

.

The degree in decimals – 47.392° – is the same as 47°23’31.2″.

Why are we multiplying by sixty? 47.392° is the same as 47 degrees and 0.392 of a degree. As you know, one degree equals 60 minutes. By multiplying the part of a degree by sixty, you get 23 minutes and 0.52 of a minute. One minute equals 60 seconds. So, when you multiply the part of a minute by sixty, you find the number of seconds.

You don’t want to calculate it by hand? Use our degrees minutes seconds calculator! And don’t forget to check out our other calculators like this scale converter.

**Thank you very much! This tutorial was compiled and researched by Erwin Salarda.**