## What is the thickness of 1 oz copper?

1.37 mils

The most common unit of measure for the copper thickness on a printed circuit board is ounces (oz). But how thick is that? It’s the resulting thickness when 1 oz of copper is pressed flat and spread evenly over a one square foot area. This equals 1.37 mils (1.37 thousandths of an inch).

**What is the thickness of 2 ounce copper?**

2.8 mils

2 oz copper (70µm thick or 2.8 mils) — Standard internal layer copper thickness for internal layers on 3 oz finished copper selection. This is the standard starting copper thickness on the external layers for PCBs with the 3 oz finished copper weight selection.

**What is 2 oz copper PCB?**

A 2 oz copper PCB is a printed circuit board whose copper weight per square foot amounts to two ounces. To make this circuit board, copper of two-ounce weight is flattened to form an even surface with square dimensions of one foot. The resulting thickness of this board type is about 2.8 mils or 70 micrometers.

### What is finished copper thickness?

According to the IPC-A-600J-Class 2 Standards an 18 µm Start Copper must have a minimum End Copper of 33.4 µm, here we state +/-35 µm as “Our Nominal End Copper Thickness” where the “+/-” means approximately and is based on our manufacturing experience but has a guaranteed minimum thickness of 33.4 µm.

**How thick is 1.5oz copper?**

Copper Thickness Conversion Chart

oz | 1 | 1.5 |
---|---|---|

mils | 1.37 | 2.06 |

inch | 0.00137 | 0.00206 |

mm | 0.0348 | 0.0522 |

µm | 34.80 | 52.20 |

**What is the thickness of 1/2 oz copper?**

copper has a thickness of 1.4mils. 1/2 oz.

#### What is the thickness of 3 oz copper?

Copper Weight Minimum Spacing Rules

Cu Weight | Min. Recommended Space between Copper Features and Min. Trace width |
---|---|

1oz | 3.5 mil (0.089mm) |

2oz | 8 mil (0.203mm) |

3oz | 10 mil (0.254mm) |

4oz | 14 mil (0.355mm) |

**How thick is 16oz copper?**

22 mils

Weight per square foot | Thickness | Gauge |
---|---|---|

16 oz | .0216″ (22 mils) | 24 Gauge |

20 oz | .027″ (27 mils) | 22 Gauge |

32 oz | .043″ (43 mils) | 19 Gauge |

48 oz | .0647″ (64 mils) | 16 Gauge |

**How thick is 24ga copper?**

Gauge Thicknesses For Brass, Copper and Silver

Copper, Brass, Silver, etc. Gauge | Thickness, Inches | Thickness, mm |
---|---|---|

22 | 0.0253 | 0.644 |

23 | 0.0226 | 0.573 |

24 | 0.0201 | 0.511 |

25 | 0.0179 | 0.455 |

## What gauge is 16oz copper?

24 gauge

0216″) 24 gauge: 16 ounce copper sheeting is a heavy weight copper often referred to as “roofing copper” or “roofing flashing.” It weighs approximately 1 pound per square foot.