How accurate are these calculations?

Formulas adhere strictly to industry engineering and trade handbook standards. Always allow safety margins for critical real-world installations.

Does this tool transmit any personal or project data?

No. All calculations run strictly client-side inside your browser. No data ever leaves your computer.

Is my data uploaded anywhere?

No. The calculation runs in your browser with JavaScript — nothing you type is sent to a server or stored.

Does it work on a phone?

Yes. The layout adapts to small screens and needs no app or signup.

Aquarium Chiller & Heater Wattage Sizing Calculator

Size freshwater and saltwater reef tank heaters and thermoelectric/refrigerant chillers based on tank gallon volume and ambient temperature swings.

100% free
Private in browser
No signup
No watermarks

Total Aquarium Water Volume (Gallons)

Ambient Room Temperature (°F)

Target Aquatic Water Temperature (°F)

Submerged Pumps / Lighting Heat Addition (Watts)

Recommended Aquarium Submersible Heater (Watts)

300

Cooling Capacity Required (BTU/hr)

Recommended Chiller Rating (Horsepower HP)

Estimated Daily Electricity Consumption (kWh)

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About Aquarium Chiller & Heater Wattage Sizing Calculator

Size freshwater and saltwater reef tank heaters and thermoelectric/refrigerant chillers based on tank gallon volume and ambient temperature swings. You get Recommended Aquarium Submersible Heater, Cooling Capacity Required and Recommended Chiller Rating straight away. Everything runs in your browser, so your data never leaves your device.

How to use Aquarium Chiller & Heater Wattage Sizing Calculator

Enter your specific project and environment input parameters
Review the computed values, conversions, and ratings in real-time
Adjust variables to simulate different scenarios and tolerances

Key features

Instant dynamic client-side calculations
Interactive sliders and numeric inputs
Industrial and engineering formulas validated against standards
100% private and offline in-browser execution

Frequently asked questions

How accurate are these calculations?: Formulas adhere strictly to industry engineering and trade handbook standards. Always allow safety margins for critical real-world installations.
Does this tool transmit any personal or project data?: No. All calculations run strictly client-side inside your browser. No data ever leaves your computer.
What does the Aquarium Chiller & Heater Wattage Sizing Calculator give me?: It works out Recommended Aquarium Submersible Heater, Cooling Capacity Required, Recommended Chiller Rating and Estimated Daily Electricity Consumption, updating live as you change the inputs.
Is my data uploaded anywhere?: No. The calculation runs in your browser with JavaScript — nothing you type is sent to a server or stored.
Does it work on a phone?: Yes. The layout adapts to small screens and needs no app or signup.

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