# How big is 80 mm

## What size in inches is 80 mm?

Millimeters to inches conversion table

Millimeters (mm) | Inches (“) (decimal) | Inches (“) (fraction) |
---|---|---|

70 mm | 2.7559 ″ | 2 3/4 ″ |

80 mm | 3.1496 ″ | 3 5/32 ″ |

90 mm | 3.5433 ″ | 3 35/64 ″ |

100 mm | 3.9370 ″ | 3 15/16 ″ |

## How many MM is a size?

One millimetre is

…

**equal to 1000 micrometres**or 1000000 nanometres. Since an inch is officially defined as exactly 25.4 millimetres, a millimetre is equal to exactly 5⁄127 (≈ 0.03937) of an inch.…

millimetre | |
---|---|

metres | 1×10 = 0.001 m^{−}^{3} m |

kilometres | 1×10^{−}^{6} km |

inches | 0.039370 in |

feet | 0.0032808 ft |

## Is 60mm bigger than 80mm?

The

**difference is not slight at all**, it is quite significant. The difference is the same ratio wise as an 8″ scope versus 6″ scope. It is a considerable difference, not peanuts. It would have to be one helluva poor quality 80mm achromat if it cannot show a significant difference over a 60mm achromat.## How wide is 8cm?

What size is 8 cm in inches?

Centimeters (cm) | Inches (“) (decimal) | Inches (“) (fraction) |
---|---|---|

6 cm | 2.3622 in | 2 23/64 in |

7 cm | 2.7559 in | 2 3/4 in |

8 cm | 3.1496 in | 3 5/32 in |

9 cm | 3.5433 in | 3 35/64 in |

## Which is mm on a ruler?

Look at the unmarked lines on a metric ruler.

The numbered lines correspond to centimeters, while the **unmarked lines indicate millimeters**. If you look closely, you’ll notice that there are 10 millimeters in a centimeter.

## What is 1 mm on a ruler?

Like the inches ruler, you’ll see tons of lines on a metric ruler, with some longer and some shorter. Each line represents 1 millimeter, which is

**equal to 1/10 or 0.1 cm**(so 10 mm make up 1 cm). There will always be 10 lines from one centimeter to the next centimeter.## What size is 6mm in inches?

1/4 inch

6mm = almost

**1/4 inch**. 7mm = almost 9/32 inch (= a bit over 1/4 inch) 8mm = 5/16 inch.## How long is 4 inches actual size?

4 inches is equal to

**10.15 centimeters**or 101.6 millimeters.## How big is half and inch?

a half of an inch, equal to

**1/24 of a foot**(1.27 centimeters).## How wide is 4 mm?

MM | Approximate Size In Inches | Exact Size In Inches |
---|---|---|

1mm | 1/25 Inch | 0.03937 Inches |

2mm | 1/16 Inch | 0.07874 Inches |

3mm | 3/32 Inch | 0.11811 Inches |

4mm | 1/8 Inch | 0.15748 Inches |

## What is 1.5 mm on a ruler?

MM, CM to inches conversion table

MM | CM | Approximate Fractional Inches |
---|---|---|

12 mm | 1.2 cm | Just short of 1/2 Inch |

13 mm | 1.3 cm | Little over 1/2 Inch |

14 mm | 1.4 cm | 9/16 Inch |

15 mm | 1.5 cm | Just short of 5/8 Inch |

## How can I convert cm to mm?

To convert cm to mm,

**multiply by ten**.To convert centimetres to millimetres, multiply by 10. 2.8 multiplied by 10 is 28. 2.8 cm is the same length as 28 mm.

## How many inches is 4mm thick?

Convert mm to Inches

mm | Inches | Inches |
---|---|---|

3 | 0.12 | 3/32 inch |

4 | 0.16 | 1/8 inch |

5 | 0.20 | 3/16 inch |

6 | 0.24 | Just under 1/4 inch |

## What is bigger 2mm or 3mm?

mm is a unit of measure. 2mm is approximately equal to 1/16 inch.

**3mm would be slightly thicker**.## How many centimeters are in millimeters and inches?

25.4 millimeters

1 inch =

**25.4 millimeters**. 1 inch = 2.54 centimeters. 1 centimeter = 10 millimeters. 100 centimeters = 1 meter.## How do you measure mm on a necklace?

## How do you measure mm on a tape measure?

**If you have a metric tape measure, the numbers should be read like this:**

- The large, numbered markings are centimeters.
- There is a smaller marking exactly halfway between the centimeters for ease of reading.
- The smallest markings are millimeters, or one tenth of a centimeter.

## How do you measure mm in inches?

You can convert millimeters to inches in one of two ways:

**divide the number of millimeters by 25.4**, or multiply the number of millimeters by 0.0394.## What does mm mean in jewelry?

When measurements for beads or other jewelry-making supplies are listed in millimeters, use this chart to gain a better understanding of how large the product is in inches. For items that are larger than 25 mm, you can convert to inches using a conversion calculator. MM. Approximate

**Size in Inches**.## How do I know my necklace size?

**Lay the string/chain flat on a surface and measure the length up to the mark**. This measurement should be your necklace chain length.

…

**HOW TO MEASURE NECKLACE LENGTH FOR YOURSELF**

- Choose a similar necklace/cord to the one you are buying. …
- Wrap the chain around your neck. …
- Measure the chain by laying it flat.

## How do I know my chain size?

To determine the pitch (chain size), you’ll need

**to measure the distance between any three consecutive rivets, then divide the result by 2**. The rivets are the small, round pegs/studs that hold the chain segments together. Measure from the first to the third, then divide that number in half to get your chain pitch.## What does mm mean for gold?

1

**millimeter**(mm) 0.04″ (a bit less than 1/16″) 1 inch (“) 2.54 centimeter (cm), or 25.4mm.## How can I measure mm without a ruler?

**Tuesday Tip – How to Measure Without A Ruler**

- 1) Dollar Bill. The bill is just shy of being a perfect measure. …
- 2) Credit Card. The average credit card makes a nice sturdy ruler. …
- 3) Quarter. Makes a pretty darn good 1″ measure.
- 4) Paper! We all remember learning as a kid, a regular sheet of paper measures: …
- 5) Your Thumb.

## What does mm stand for on silver?

**Birmingham Makers Marks**– M.

## How can you tell white gold?

**Here are some ways to tell . . .**

- White gold does not tarnish. …
- Platinum is harder and shinier than white gold. …
- Aluminum doesn’t look like a precious metal. …
- Stainless steel is harder than silver, platinum or gold. …
- White gold can be quickly detected using a small gold testing kit.