calculatorReviewed 2026-06-30
Heat Transfer Rate Calculator
Estimate heat-transfer rate or total heat using energy-time, batch sensible heat, steady-flow sensible heat, and user-entered latent heat formulas.
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Thermal engineering calculators for heat-transfer rate, conduction, convection, radiation, heat exchangers, resistance networks, insulation, and fins.
Use ScholarTool thermal engineering utilities for heat-transfer rate, steady conduction, convection, radiation, LMTD, effectiveness-NTU, overall U, thermal resistance, critical insulation radius, and straight-fin workflows. Published tools keep absolute temperature and temperature difference separate, normalize values to SI internally, and explain assumptions and limitations.
Published calculator entries in this category.
Estimate heat-transfer rate or total heat using energy-time, batch sensible heat, steady-flow sensible heat, and user-entered latent heat formulas.
Solve plane-wall, cylindrical-wall, spherical-shell, or direct-resistance conduction with unit normalization and heat-flow direction.
Use Newton's law of cooling to solve convection heat rate, heat-transfer coefficient, area, or temperature difference.
Estimate net thermal radiation heat transfer and equivalent linearized radiation coefficient with absolute-temperature handling.
Compute parallel-flow or counterflow LMTD, handle equal terminal differences, and apply a user-entered correction factor.
Estimate effectiveness, heat rate, qmax, capacity-rate ratio, and outlet temperatures using basic epsilon-NTU relationships.
Combine film coefficients, wall layers, fouling, and contact resistance into an overall heat-transfer coefficient.
Build a simple series or parallel thermal-resistance network and compute equivalent resistance and heat-transfer rate.
Estimate whether added insulation radius may initially increase heat loss for small cylinders or spheres.
Estimate straight rectangular or cylindrical pin fin performance using the standard adiabatic-tip corrected-length approximation.
No. They are intended for education, estimation, and preliminary engineering checks. Critical work must be verified against applicable standards, validated software, and qualified professional judgment.
Routine calculators and converters run in the browser. File tools are designed for local browser-side processing unless a tool explicitly states otherwise.
ScholarTool category pages prioritize calculation context, unit discipline, assumptions, and interpretation so users can understand when a result is appropriate and when validated software or standards are required.
Last reviewed: 2026-07-12