dBW to Volt-Ampere (VA) Converter
Power · unit-converter
Convert dBW to Volt-Ampere (VA) with a fixed input and output unit, step-by-step formula line, and reference tables. Linear units use SI watt definitions; mechanical hp uses 550 ft·lbf/s; BTU/h uses the IT BTU; dBm/dBW are logarithmic relative to 1 mW and 1 W. The full Power Converter also includes PS/CV, TR, kVA/MVA, and ft·lb/s.
Calculator
From: dBW (dbw)
To: Volt-Ampere (VA) (va)
About dBW
dBW is a logarithmic power level relative to 1 W: P(W) = 10^(dBW/10). RF, microwave, and antenna work often use dBW with dBm.
About Volt-Ampere (VA)
Volt-amperes describe apparent power in AC circuits. At unity power factor, VA matches real power in watts; this tool uses that 1:1 mapping for conversion.
How to convert decibels relative to 1 w (dbw) to volt-amperes (va, unity pf)
dBm/dBW are logarithmic power levels. P_W = 10^((dBm − 30) / 10), P_W = 10^(dBW / 10), and inverse mappings use 10 × log₁₀(·) with P_W > 0.
To reach Volt-Ampere (VA), convert dBm → W, then divide by the watt factor for va (1 W per 1 va).
Examples
Example #1: Convert 10 dbw to volt-ampere (va)
10 dbw → 10 va
Example #2: Convert 30 dbw to volt-ampere (va)
30 dbw → 1000 va
Summary
To convert dBW to Volt-Ampere (VA), first convert dBW to watts: P_W = 10^(dBW/10). Then divide by the watt factor for va: value_va = P_W / 1.
Relationship context
You are converting between logarithmic RF levels (dBm) (Decibels relative to 1 W (dBW)) and apparent power at unity PF (VA) (Volt-Amperes (VA, unity PF)). Log units (dBm/dBW) use base-10 definitions relative to 1 mW or 1 W; linear units map through watts first, then to or from the selected log unit. Only strictly positive power in watts maps to a real dB power value.
Conversion tables
| dBW (dbw) | Volt-Ampere (VA) (va) |
|---|---|
| 0.1 | 1.0232929923 |
| 1 | 1.2589254118 |
| 2 | 1.5848931925 |
| 3 | 1.995262315 |
| 4 | 2.5118864315 |
| 5 | 3.1622776602 |
| 6 | 3.9810717055 |
| 7 | 5.0118723363 |
| 8 | 6.3095734448 |
| 9 | 7.9432823472 |
| dBW (dbw) | Volt-Ampere (VA) (va) |
|---|---|
| 10 | 10 |
| 20 | 100 |
| 30 | 1,000 |
| 40 | 10,000 |
| 50 | 100,000 |
| 60 | 1,000,000 |
| 70 | 10,000,000 |
| 80 | 100,000,000 |
| 90 | 1,000,000,000 |
| 100 | 10,000,000,000 |