How to Convert Gigaohms to Statohms
To convert an electrical resistance measurement from gigaohms to statohms, divide the resistance value by the conversion factor. Since one gigaohm is equal to 0.001113 statohms, you can use this formula:
The resistance in statohms is equal to the gigaohms divided by 898.7552.
Using the formula: statohms = gigaohms ÷ 898.7552
statohms = 5 GΩ ÷ 898.7552 = 0.00556325 statΩ
Therefore, 5 gigaohms equals 0.00556325 statohms.
How Many Statohms Are in a Gigaohm?
There are 0.001113 statohms in one gigaohm.
What Is a Gigaohm?
The gigaohm (symbol: GΩ) is a unit of electrical resistance equal to one billion (109) ohms. The prefix “giga” denotes a factor of 109 in the International System of Units. Gigaohms are used to measure very high resistances encountered in insulation systems, high-value resistors, and electrostatic applications. The resistance of clean, dry insulation materials, the leakage resistance of high-voltage cables, and the surface resistance of static-dissipative materials are often in the gigaohm range. In electrostatics, the surface resistance of materials determines their electrostatic dissipation properties. Conductive materials have surface resistance below 105 Ω, static-dissipative materials range from 105 to 1012 Ω (0.001–1,000 GΩ), and insulative materials exceed 1012 Ω. In semiconductor testing, the leakage resistance of capacitors and the input resistance of MOSFET gate circuits can be in the gigaohm to teraohm range. Measuring such high resistances requires electrometers and guarded measurement fixtures. In biological measurements, the seal resistance in patch-clamp electrophysiology should be at least 1 GΩ (a “gigaohm seal” or “giga-seal”) to ensure low-noise recordings of single ion channel currents.
One gigaohm is equal to:
- 109 ohms (Ω)
- 1,000 megaohms (MΩ)
- 106 kiloohms (kΩ)
- 1012 milliohms (mΩ)
- 1018 abohms (abΩ)
- 0.001113 statohms (statΩ)
What Is a Statohm?
The statohm (symbol: statΩ) is the unit of electrical resistance in the centimetre–gram–second electrostatic (CGS-ESU) system of units. One statohm is an extremely large unit of resistance, equal to approximately 8.988 × 1011 ohms (about 899 gigaohms). The statohm is defined from the fundamental CGS-ESU electromagnetic relations. In the ESU system, the unit of charge (statcoulomb) is defined in terms of the electrostatic force between charges, and the other electrical units follow from this. The statohm relates to the ohm through the speed of light: 1 statΩ = c² × 10−9 Ω (where c is the speed of light in CGS units). The enormous magnitude of the statohm reflects the fundamental difference in how the ESU system scales electrical quantities compared to SI. While the ESU system was historically used in electrostatics and theoretical physics, it has been entirely superseded by SI units in modern practice. The statohm occasionally appears in older theoretical physics literature and in textbooks discussing the history of electromagnetic unit systems. Understanding the relationship between the statohm and the ohm helps illustrate how different choices of fundamental constants lead to different unit magnitudes.
One statohm is equal to:
- 8.988 × 1011 ohms (Ω)
- 898.755 gigaohms (GΩ)
- 898,755 megaohms (MΩ)
- 8.988 × 108 kiloohms (kΩ)
- 8.988 × 1020 abohms (abΩ)
Understanding Electrical Resistance Units
Electrical resistance is a measure of the opposition to the flow of electric current through a conductor. It is defined by Ohm’s law as the ratio of voltage to current (R = V/I). Resistance depends on the material’s resistivity, the length of the conductor, and its cross-sectional area (R = ρL/A).
Resistance converts electrical energy into heat, which is the basis of resistive heating in toasters, electric heaters, and incandescent light bulbs. In electronic circuits, resistors are used to control current flow, divide voltages, bias active components, and set time constants.
Major Resistance Unit Families
- SI units: The ohm (Ω) is the SI unit of resistance, with standard metric prefixes: nanoohm (nΩ = 10−9 Ω), microohm (μΩ = 10−6 Ω), milliohm (mΩ = 10−3 Ω), kiloohm (kΩ = 103 Ω), megaohm (MΩ = 106 Ω), and gigaohm (GΩ = 109 Ω).
- CGS-EMU unit: The abohm (abΩ) is the resistance unit in the electromagnetic CGS system. 1 abΩ = 10−9 Ω = 1 nΩ.
- CGS-ESU unit: The statohm (statΩ) is the resistance unit in the electrostatic CGS system. 1 statΩ ≈ 8.988 × 1011 Ω, an extremely large value reflecting the different scaling of ESU electrical quantities.
Resistance in Everyday Life
- Wiring: Household copper wiring has very low resistance (milliohms per metre) to minimise voltage drops and heating.
- Electronics: Resistors in circuits range from fractions of an ohm (current sense) to megaohms (high-impedance inputs).
- Insulation: Good electrical insulation has resistance in the megaohm to gigaohm range, preventing current leakage.
- Human body: Dry skin has a resistance of 10,000–100,000 Ω, but wet skin can be as low as 1,000 Ω, which is why water and electricity are dangerous together.
Converting Between Resistance Units
All resistance units measure the same physical quantity, so converting between them requires multiplying by the appropriate conversion factor. For SI prefixed units, each step is a factor of 1,000. The CGS units involve the speed of light constant for the statohm, while the abohm is simply 10−9 ohms.
Tips for Resistance Conversions
- For SI prefix conversions (nΩ, μΩ, mΩ, Ω, kΩ, MΩ, GΩ), each step is a factor of 1,000. So 1 kΩ = 1,000 Ω = 1,000,000 mΩ.
- The abohm is exactly equal to the nanoohm: 1 abΩ = 1 nΩ = 10−9 Ω. They’re interchangeable.
- The statohm is an enormous unit: 1 statΩ ≈ 899 GΩ. It is rarely used in modern practice.
- To convert ohms to kiloohms, divide by 1,000. To convert kiloohms to megaohms, divide by 1,000 again.
- Resistor colour codes and standard values (E-series) are always expressed in ohms. A “4.7k” resistor is 4,700 Ω = 4.7 kΩ.
- In schematics, resistance values are often shortened: 4k7 = 4.7 kΩ, 2M2 = 2.2 MΩ, 47R = 47 Ω.
- The relationship between statohm and abohm involves the speed of light squared: 1 statΩ = c² × 1 abΩ (in CGS units), or about 8.988 × 1020 abohms.
- When measuring very low resistances (milliohms and below), always use four-terminal (Kelvin) connections to eliminate lead resistance errors.
Gigaohms to Statohms Conversion Table
The following table shows conversions from gigaohms to statohms.
| Gigaohms | Statohms (statΩ) |
|---|---|
| 1 GΩ | 0.00111265 |
| 2 GΩ | 0.0022253 |
| 3 GΩ | 0.00333795 |
| 4 GΩ | 0.0044506 |
| 5 GΩ | 0.00556325 |
| 6 GΩ | 0.0066759 |
| 7 GΩ | 0.00778855 |
| 8 GΩ | 0.0089012 |
| 9 GΩ | 0.0100139 |
| 10 GΩ | 0.0111265 |
| 11 GΩ | 0.0122392 |
| 12 GΩ | 0.0133518 |
| 13 GΩ | 0.0144645 |
| 14 GΩ | 0.0155771 |
| 15 GΩ | 0.0166898 |
| 16 GΩ | 0.0178024 |
| 17 GΩ | 0.0189151 |
| 18 GΩ | 0.0200277 |
| 19 GΩ | 0.0211404 |
| 20 GΩ | 0.022253 |
| 21 GΩ | 0.0233657 |
| 22 GΩ | 0.0244783 |
| 23 GΩ | 0.025591 |
| 24 GΩ | 0.0267036 |
| 25 GΩ | 0.0278163 |
| 26 GΩ | 0.0289289 |
| 27 GΩ | 0.0300416 |
| 28 GΩ | 0.0311542 |
| 29 GΩ | 0.0322669 |
| 30 GΩ | 0.0333795 |
| 31 GΩ | 0.0344922 |
| 32 GΩ | 0.0356048 |
| 33 GΩ | 0.0367175 |
| 34 GΩ | 0.0378301 |
| 35 GΩ | 0.0389428 |
| 36 GΩ | 0.0400554 |
| 37 GΩ | 0.0411681 |
| 38 GΩ | 0.0422807 |
| 39 GΩ | 0.0433934 |
| 40 GΩ | 0.044506 |