Transformer Calculators
These transformer calculator tools handle single and three-phase transformers: primary and secondary current, turns ratio, winding wire length, conductor size, and winding weight.
Transformer Wire Length Calculator
This transformer wire length calculator estimates the total wire in a winding from the number of…
Open calculator TransformerTransformer Conductor Size Calculator
This transformer conductor size calculator finds the wire cross-section needed for a winding from its current…
Open calculator TransformerTransformer Turns Calculator
This transformer turns calculator finds how many turns a winding needs from the EMF equation, using…
Open calculator TransformerTransformer Winding Weight Calculator
This transformer winding weight calculator estimates the mass of copper in a coil from the total…
Open calculator TransformerTwo-Wattmeter Method Calculator
This two wattmeter method calculator finds total three-phase power and the power factor from two wattmeter…
Open calculator TransformerThree-Phase Transformer Calculator
This three phase transformer calculator relates kVA, line voltage, and line current. Enter any two values…
Open calculatorTransformer Current Calculator
This transformer current calculator finds the primary and secondary current from the transformer’s kVA rating and…
Open calculator TransformerSingle-Phase Transformer Calculator
This single phase transformer calculator finds the turns ratio, secondary voltage, and current from your primary…
Open calculatorAbout Transformer Calculators
These transformer calculator tools handle single and three-phase transformers: primary and secondary current, turns ratio, winding wire length, conductor size, and winding weight. Choose a tool below for an instant result with the formula.
Sizing a transformer by hand is error-prone. These tools apply the turns and VA relationships and show each step so your ratings and conductor sizes stay correct.
Calculators in this category
- Single-Phase Transformer Calculator
- Three-Phase Transformer Calculator
- Transformer Current Calculator
- Transformer Conductor Size Calculator
- Transformer Wire Length Calculator
- Transformer Turns Calculator
- Transformer Winding Weight Calculator
- Two-Wattmeter Method Calculator
Frequently Asked Questions
What can I calculate for a transformer?
Primary and secondary current, number of turns, winding wire length, primary conductor size, and winding weight, for single and three-phase units. Each tool covers one task.
Are these tools free to use?
Yes. Every calculator on this page is free, needs no signup, and works in your browser on mobile and desktop.
Do these work for three-phase transformers?
Yes. The tools cover both single-phase and three-phase transformers and state the formula and assumptions used for each.