Is this calculation free and private?

Yes, 100% of calculations execute locally in your web browser. No inputs or personal data are stored or transmitted.

What does the Propane Tank Runtime & Vaporization Calculator give me?

It works out Continuous Burn Runtime, Usable Liquid Propane, Total Available Energy and Safe Continuous Vaporization, updating live as you change the inputs.

What do I need to enter?

Just Propane Tank Water Capacity, Current Tank Gauge Reading, Appliance Fuel Consumption and Lowest Ambient Outdoor Temp. Every field has a sensible default you can start from.

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.

Propane Tank Runtime & Vaporization Calculator

Calculate propane fuel burn hours, total stored BTU energy, and maximum continuous winter vaporization rates for LP tanks (20lb to 500gal).

100% free
Private in browser
No signup
No watermarks

Propane Tank Water Capacity (Gallons, 20lb=4.7gal, 100lb=23.6gal)

Current Tank Gauge Reading (%)

Appliance Fuel Consumption (BTU/hr)

Lowest Ambient Outdoor Temp (°F)

Continuous Burn Runtime (Hours)

146.5

Usable Liquid Propane (Gallons)

Total Available Energy (BTU)

8,788,512

Safe Continuous Vaporization (BTU/hr)

75,000

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About Propane Tank Runtime & Vaporization Calculator

Calculate propane fuel burn hours, total stored BTU energy, and maximum continuous winter vaporization rates for LP tanks (20lb to 500gal). Enter Propane Tank Water Capacity, Current Tank Gauge Reading and Appliance Fuel Consumption and the tool works out Continuous Burn Runtime, Usable Liquid Propane and Total Available Energy straight away. Everything runs in your browser, so your data never leaves your device.

How to use Propane Tank Runtime & Vaporization Calculator

Enter Propane Tank Water Capacity, Current Tank Gauge Reading and Appliance Fuel Consumption.
Adjust the remaining options (Lowest Ambient Outdoor Temp) to match your case.
Read Continuous Burn Runtime, Usable Liquid Propane and Total Available Energy in the results panel — copy or download what you need.

Key features

Shows Continuous Burn Runtime (Hours)
Shows Usable Liquid Propane (Gallons)
Shows Total Available Energy (BTU)
4 adjustable inputs, results update as you type
No signup, no limits

Frequently asked questions

Is this calculation free and private?: Yes, 100% of calculations execute locally in your web browser. No inputs or personal data are stored or transmitted.
What does the Propane Tank Runtime & Vaporization Calculator give me?: It works out Continuous Burn Runtime, Usable Liquid Propane, Total Available Energy and Safe Continuous Vaporization, updating live as you change the inputs.
What do I need to enter?: Just Propane Tank Water Capacity, Current Tank Gauge Reading, Appliance Fuel Consumption and Lowest Ambient Outdoor Temp. Every field has a sensible default you can start from.
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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