Transformer Turns Ratio Calculator — Calculate Voltage & Current Ratios

Transformer Turns Ratio Calculator

Calculate transformer turns ratio, voltage transformation, and current ratios. Ideal for electrical engineers, technicians, and DIY enthusiasts.

Step 1: Transformer Parameters

turns
turns

Transformer Basics

Turns Ratio = N₁/N₂ = V₁/V₂ = I₂/I₁. Step-up transformers have more secondary turns, step-down have fewer secondary turns.

Step 2: Load & Calculations

Key Formulas

V₂ = V₁ × (N₂/N₁), I₂ = V₂/Z₂, I₁ = I₂ × (N₂/N₁) × (1/efficiency), Z₁ = Z₂ × (N₁/N₂)²

Transformer Analysis Results

Summary
Parameters
Performance

Turns Ratio (N₁:N₂)

2:1
Step-down Transformer
Secondary Voltage
60 V
Secondary Current
1.2 A
Primary Current
0.63 A
Input Impedance
200 Ω

Complete Parameter List

Parameter Symbol Value Unit Description

Transformer Performance

Transformer Formulas

Key Transformer Equations

Turns Ratio: a = N₁/N₂ = V₁/V₂ = I₂/I₁
Voltage Transformation: V₂ = V₁ × (N₂/N₁)
Current Transformation: I₁ = I₂ × (N₂/N₁)
Impedance Transformation: Z₁ = Z₂ × (N₁/N₂)²

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