Electrical Resistivity of Common Materials

Electrical resistivity is a property of materials that quantifies their ability to resist the flow of electric current. The following table provides a curated list of electrical resistivity values for common materials in ohm-meter (Ω.m) unit.

Unless stated otherwise, all values are taken at standard room temperature (approximately 20°C or 68°F) and 1 atmospheric (atm) pressure. (1 atm = 101,325 Pa)

Electrical Resistivity Values for Different Materials
Air109 - 1016
Aluminum2.65 ×10-8 - 2.82 ×10-8
Asbestos1011 - 1013
Bakelite109 - 1011
Carbon (amorphous)1.5 ×10-5 - 4.5 ×10-5
Carbon (graphite)1.5 ×10-5
Concrete106
Constantan4.9 ×10-7
Copper1.7 ×10-8
Diamond1012 - 1016
Distilled water5 ×103
Germanium10-3 - 5 ×10-1
Glass1010 - 1014
Gold2.44 ×10-8
Granite108 - 1010
Graphene6 ×10-8
Hydrogen106 - 109
Iron9.7 ×10-8
Lead2.2 ×10-7
Manganin4.5 ×10-7
Marble107 - 109
Mercury9.8 ×10-7
Mica1012 - 1016
Nichrome1.25 ×10-6
Nickel6.99 ×10-8
Nylon1012
Platinum1.06 ×10-7
Polyethylene1016 - 1017
Pure water2 ×105
Polyvinyl Chloride (PVC)1016
Quartz7 ×1017
Rain water2 ×102
Rubber1013 - 1015
Sea water0.2
Semiconductors10-6 - 108
Silicon6.4 ×10-2
Silicon carbide10-3
Silver1.59 ×10-8
Stainless steel6.9 ×10-7
Superconductors0 (at critical temp)
Tin1.09 ×10-7
Tungsten5.6 ×10-8
Wood (oak)1010 - 1011
Zinc5.9 ×10-8

The electrical resistivity of materials can vary depending on many factors. The values listed above are meant to provide a general idea of the resistivity range for each material.

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