Disclaimer

Last updated: 2026

The calculators on SizeBench are tools for quick estimates and learning. They are demonstrations of standard formulas, not a replacement for professional judgment.

Estimates, not specifications

Every result is an approximation based on the inputs you provide and on simplified, typical assumptions (for example ambient temperature, insulation type, efficiency or material density). Real conditions can differ significantly.

Not professional advice

Nothing on this site is engineering, electrical, marine, construction, financial or legal advice. For any installation, purchase or safety-related decision, consult a licensed professional and follow the manufacturer's instructions.

Codes and standards

Where we reference the NEC®, ABYC, IEC, TIA or other standards, we summarize publicly known values for educational purposes. Always check the current edition adopted in your area and any local amendments. Your local inspector or authority having jurisdiction has the final word.

Financial estimates

Cost, savings and payback figures are illustrative only. They depend on prices, rates, incentives and tax rules that change and vary by location.

Your responsibility

By using this site you accept that you are solely responsible for how you use the results. See our Terms of Use for the full terms, including limitation of liability.