Tested
EER Calculator
Energy efficiency ratio of an air conditioner and its COP equivalent.
Science Calculators
Use CalculatorScience Calculators
Free science calculators for everyday questions, from quick checks to detailed breakdowns.
Science tools (6)
- Tested
Heat Pump COP Calculator
Coefficient of performance from heat output and power input, or the Carnot limit.
Science Calculators
Use Calculator - Tested
Heat Transfer Calculator
Conductive heat flow through a flat wall.
Science Calculators
Use Calculator - Tested
Specific Heat Calculator
Specific heat capacity or heat required from Q = m c ΔT.
Science Calculators
Use Calculator - Tested
Thermal Expansion Calculator
Change in length from a temperature change.
Science Calculators
Use Calculator - Tested
Thermodynamic Processes Calculator
Work, heat and internal energy for an ideal gas process.
Science Calculators
Use Calculator
All science calculators by topic (89)
Astronomy
Atmosphere
Atomic Physics
Chemistry
Dynamics
Emissions
Energy
Environment
Fluids
Kinematics
Mechanics
Medical
Nuclear
Physics
Relativity
Thermal
Thermodynamics
About science calculators
Science Calculators help you turn a question into a clear, checkable answer. Each tool lists its inputs, shows the formula it relies on and explains how to read the result.
Browse by topic using the filters, or search for a specific tool. Tools that are still being built are clearly marked as previews and are not presented as finished calculators.
Frequently asked questions
Are the science calculators calculators free?
Yes. Every calculator on Calculator Atlas is free to use and requires no sign-up.
How are results verified?
A calculator is only published after its formula has been implemented, tested against reference values and reviewed. Pages still in development are labeled as previews.