dBµA ↔ µA / mA / A Current Converter

Frequently asked questions

How do I convert dBµA to mA?

mA = 10^((dBµA − 60) / 20). Because 60 dBµA is 1 mA, subtract 60, divide by 20 and raise 10 to that power. For example, 80 dBµA is 10 mA and 46 dBµA is about 0.2 mA.

How do I convert mA to dBµA?

dBµA = 20·log₁₀(mA) + 60. For example, 5 mA is about 74 dBµA and 0.1 mA is 40 dBµA. For a value in µA, dBµA = 20·log₁₀(µA).

What is the difference between dBµA and dBµV?

dBµA is a current level and dBµV is a voltage level. When the same current flows through an impedance Z, dBµV = dBµA + 20·log₁₀(Z), which is about +34 dB (exactly 33.98 dB) at 50 Ω. For example, 40 dBµA is about 74 dBµV in a 50 Ω system.

How do I convert dBµA to dBm?

dBm = dBµA − 90 + 10·log₁₀(Z). At 50 Ω this becomes dBm = dBµA − 73 (exactly −73.01), so 60 dBµA (1 mA) is about −13 dBm.

Are dBµA and dBµA/m the same unit?

No. dBµA is current in a conductor, while dBµA/m is magnetic field strength (H). Its reference is 1 µA/m, so 120 dBµA/m = 1 A/m; use the magnetic field unit converter for field strength.