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Both calculators run independently — change the inputs on either side to compare results.
Electrical
Transformer Sizing Calculator
Determine the minimum transformer kVA rating needed for a given electrical load, accounting for demand factor, power factor, safety margin, and ambient temperature derating. Use this when specifying or replacing distribution transformers on new or existing electrical systems.
Fill in the required fields to see your result.
Electrical
Transformer Sizing Calculator
Determine the required KVA rating for a transformer based on connected load, voltage levels, load factor, and future growth. Use this when specifying or replacing a transformer for commercial or industrial installations.
Fill in the required fields to see your result.
Key differences
| Transformer Sizing Calculator | Transformer Sizing Calculator | |
|---|---|---|
| Category | Electrical | Electrical |
| Inputs required | 5 | 3 |
| Result | Required Transformer Size (kVA) | Required Transformer Rating (kVA) |
| What it does | Determine the minimum transformer kVA rating needed for a given electrical load, accounting for demand factor, power factor, safety margin, and ambient temperature derating. Use this when specifying or replacing distribution transformers on new or existing electrical systems. | Determine the required KVA rating for a transformer based on connected load, voltage levels, load factor, and future growth. Use this when specifying or replacing a transformer for commercial or industrial installations. |