Natural Gas Carbon Calculator
Calculate the full climate impact of natural gas usage including combustion, upstream emissions, and methane leakage.
Gas Usage
Emission Factors
EPA estimates 2.3% average; some studies show higher
Emission Breakdown
Total Annual CO2 Equivalent
10,075.2 kg
10.0752 tonnes
Emission Sources
Direct combustion CO26,360 kg
Upstream emissions1,590 kg
Methane leakage (CO2e)2,125.2 kg
Energy Delivered
31,644 kWh
Carbon Intensity
318 g/kWh
Benchmark Comparison
240% of average household for heating
Heat Pump Alternative
Heat pump CO24,071.53 kg
-60% emissions
Save 6,003.67 kg CO2/year
Cost Analysis
Gas cost (~$1.20/therm)$1440.00
Carbon cost ($50/tonne)$503.76
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.