ONE FORMULA, ONE ANSWER
Ideal Transformer Voltage Calculator
Calculate ideal AC transformer secondary voltage from the turns ratio. Choose input units and calculate one value within the stated conditions.
Inputs
Calculations run in this browser. Scientific notation such as 1.2e-3 is supported. Do not group thousands.
Result
Secondary RMS voltage V₂
Enter values and select Calculate.
V₂ = V₁N₂/N₁
Assumptions
Required: V₁≥0 and positive integer turn counts in an ideal coupled AC transformer. Excluded: DC operation, core loss, leakage, load regulation and power ratings.
Displayed values are floating-point approximations. Design safety factors and unprovided error contributions are not calculated.
Formula references and credits
NaNa Lab created the code, descriptions, icons and preview images. Text, figures and code from the linked references have not been reproduced.
Physical constants: NIST / CODATA 2022. The values of μ₀ and ε₀ are measured recommendations, not exact defining constants. Values and precision notes are in the source record.
This site includes Google advertising and analytics, and Cloudflare analytics.