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A Free Online transformer voltage Calculator
Inductor Calculator
Features
A Free Online Transformer Voltage Calculator
Instant Transformer Voltage Calculation
Easily calculate transformer voltage with our free online tool. Get accurate results for primary and secondary voltage in just seconds!
Supports Single-Phase
Our calculator handles both single-phase and three-phase transformer calculations, making it ideal for engineers, electricians, and students.
100% Free & Online – No Downloads Required
Use our web-based transformer calculator from anywhere. No software installation or registration needed!
calculate transformer voltage quickly and accurately
Our free online Transformer Voltage Calculator helps you determine primary and secondary voltage, voltage ratio, and turns ratio with ease.

Over 50,000 people rely on our calculator for their daily study
Our calculator is optimized for desktop, tablet, and mobile users, ensuring a smooth experience on any device.
Use our web-based transformer calculator from anywhere. No software installation or registration needed!
Enter your transformer parameters and get precise voltage ratio, turns ratio, and step-up/step-down values instantly.
Highlight the key features
Our calculator has excellent advantages.
⭐ A Beautiful Reviews Section – What Our Users Say
An Essential Tool for Every Engineer!
This transformer voltage calculator is a lifesaver! It's accurate, fast, and easy to use. I no longer need to manually calculate voltage ratios – this tool does it instantly!
Jonas Aly
Electrical Engineer
Perfect for Home Electrical Projects!
I use this calculator for my home electrical projects, and it's incredibly helpful. The step-up and step-down voltage calculations are spot-on. Highly recommended!
Mark Bures
DIY Enthusiast
A Must-Have for Students!
As a student, I appreciate how simple and intuitive this tool is. It helps me check my transformer calculations quickly and saves me so much time!
William Kolas
Engineering Student
A Game-Changer for Electricians!
I work with transformers daily, and this calculator has become an essential tool in my workflow. The ability to calculate both single-phase and three-phase transformers makes it perfect!
Andrew Chan
Professional Electrician