# Does the number of decimal places in coordinates affect the speed of rendering of the features on a Leaflet map?

Geographic Information Systems**No, the number of relevant decimal places used in numbers do not matter**.

Contents:

## How many decimals do coordinates need?

So, when it comes to GPS data, you need coordinates out to **at least five (5) decimal places** to be useable in terms of locating and subsequently evaluating incremental speeds between points.

## How many decimals are in a GPS coordinate?

Longitude and latitude coordinates are stored with **15 decimal digits** right of the decimal points. By default LAStools will use 7 decimal digits to store longitude and latitude coordinates to a LAS or LAZ file.

## Can you use decimals in coordinates?

Where necessary, **the coordinates of a point can be specified by using decimals or fractions**. However, locating points whose coordinates are not whole numbers requires more precision when reading along the axes. For example, here the coordinates of the point A are (2.2, 1.8).

## How accurate are decimal places?

A value in decimal degrees to an accuracy of 4 decimal places is accurate to 11.1 meters (+/- 5.55 m) at the equator.

Accuracy.

decimal places | degrees | distance |
---|---|---|

3 | 0.001 | 111 m |

4 | 0.0001 | 11.1 m |

5 | 0.00001 | 1.11 m |

6 | 0.000001 | 0.111 m |

## Does more decimal places mean more accurate?

**The number of decimal places correlates directly to the level of precision**.

## Why are decimal places important?

We use decimals every day while dealing with money, weight, length etc. **Decimal numbers are used in situations where more precision is required than the whole numbers can provide**. For example, when we calculate our weight on the weighing machine, we do not always find the weight equal to a whole number on the scale.

## How do you graph coordinates with decimals?

Quote from video: *So 1.4 in the x. Direction is positive so we're moving to the right and we're moving to the right 1.4. So that would fall between 1 and 2 and it's less than 1.5 so 1.4 will fall to about right here.*

## Why do we have 3 decimal places?

**The third decimal digit from the decimal point is the thousandths digit**. For example, 0.008 is eight thousandths. Read the whole set of three decimal digits as a number, and say “thousandths.” 0.825 has 8 tenths, 2 hundredths, and 5 thousandths.

## What is the precision of decimal places?

Quote from video:

## How far is 0.001 latitude?

0.06894 statute miles

1 degree of latitude in physical distance is 68.94 statute miles or 59.91 nautical miles (110.95 km) — for a spherical earth assumption. So, a change of 0.001 degrees latitude is **0.06894 statute miles** or 0.05991 nautical miles.

## How accurate are coordinates to 6 decimal places?

Therefore, it’s always safe to figure that the sixth decimal place in one decimal degree has 111,111/10^6 = about 1/9 meter = **about 4 inches of precision**. Accordingly, if your accuracy needs are, say, give or take 10 meters, than 1/9 meter is nothing: you lose essentially no accuracy by using six decimal places.

## How many decimal places does NASA use?

15 digits

For most calculations, NASA uses **15 digits**: 3.141592653589793.

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