Scope Right Calculator
Select your tools / Calculators
Antennas, Prop. & VSWR
Field Strength & EMC
Power, dBm & Voltage
Frequency & Wavelength
Antenna Gain dBi
Result: - dBi
Formula: 10 · log₁₀((efficiency / 100) · directivity)
Cavity Resonance Frequency
Result: - Hz
Formula: (3·10⁸ / 2) · √((1 / w)² + (1 / l)²)
Free Space Path Loss (FSPL)
Result: - dB
Formula: FSPL = 20·log₁₀(d/1000) + 20·log₁₀(f) + 32.44
ERP to EIRP
Result: - dBm (EIRP)
Formula: EIRP = ERP + 2.15
Line of Sight
Result: - km
Formula: 3.57 · (√h₁ + √h₂)
Magnetic Field Loop Antenna
Result: - A/m
Formula: (Windungen · I) / (2 · r)
Return Loss to VSWR
Result: - (VSWR)
Formula: (10^(RL/20) + 1) / (10^(RL/20) - 1)
VSWR from Power
Result: - (VSWR)
Formula: (1 + √(P_rev / P_fwd)) / (1 - √(P_rev / P_fwd))
Amperes to dBm
Result: - dBm
Formula: 10 · log₁₀(I² · Z · 1000)
Amperes to Volts
Result: - V
Formula: U = I · Z
Amperes to Watts
Result: - W
Formula: P = I² · Z
dBm to Amperes
Result: - A
Formula: I = √((10^(dBm/10) / 1000) / Z)
dBm to dBµV
Result: - dBµV
Formula: dBm + 90 + 10·log₁₀(Z)
dBm to Volts
Result: - V
Formula: U = √((10^(dBm/10) / 1000) · Z)
dBm to Watts
Result: - W
Formula: P = 10^(dBm/10) / 1000
Watts to dBm
Result: - dBm
Formula: 10 · log₁₀(P · 1000)
dBm to Milliwatts
Result: - mW
Formula: P = 10^(dBm/10)
Milliwatts to dBm
Result: - dBm
Formula: 10 · log₁₀(P)
dBµV to dBm
Result: - dBm
Formula: dBµV - 90 - 10·log₁₀(Z)
Hz to PPM
Result: - PPM
Formula: (Δf / f) · 1.000.000
Ohm's Law
Result: - Ω
Formula: R = U / I
PPM to Hz
Result: - Hz
Formula: (PPM · f) / 1.000.000
Volts to dBm
Result: - dBm
Formula: 10 · log₁₀((U² / Z) · 1000)
Volts to Watts
Result: - W
Formula: P = U² / Z
Watts to Amperes
Result: - A
Formula: I = √(P / Z)
Watts to Volts
Result: - V
Formula: U = √(P · Z)
Frequency to Wavelength
Result: - m
Formula: λ = 300 / f
Wavelength to Frequency
Result: - MHz
Formula: f = 300 / λ
Wi-Fi Channel Center Freq
Result: - MHz
Formula: f = 2407 + (Kanal · 5)
Antenna Field Strength
Result: - V/m
Formula: E = √(30 · P · G) / d
dBµV/m to V/m
Result: - V/m
Formula: E = 10^((E_dBµV - 120) / 20)
Field Strength (V/m to dBµV/m)
Result: - dBµV/m
Formula: E_dBµV = 20 · log₁₀(E) + 120
Power Density
Result: - W/m²
Formula: S = E² / 377
Power for Field Strength
Result: - W
Formula: EIRP = (E² · d²) / 30
Radiated Power
Result: - dBm EIRP
Formula: EIRP = 10·log₁₀(P·1000) - L + G
SAR Calculator
Result: - W/kg
Formula: SAR = (σ · E²) / ρ
V/m to dBµV/m
Result: - dBµV/m
Formula: 20 · log₁₀(E) + 120