Emissions Calculator

Automated Scope 1, 2, and 3 emissions calculations using verified UK DEFRA 2025 methodologies. Transform your activity data into accurate CO2e measurements instantly.

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Live Emissions Calculator

See how your activity data transforms into emissions in real-time

Quick Start Templates

Choose your industry to start with typical emission values

Activity Data Input

UK Grid Average 2025: 0.193 kgCO₂e/kWh

Natural Gas: 0.184 kgCO₂e/kWh

Diesel: 2.687 kgCO₂e/litre

Domestic Flights: 0.246 kgCO₂e/km

Calculated Emissions

Scope 1 (Direct Emissions) 7.386 tCO₂e
Natural Gas: 1.610 tCO₂e
Diesel Fuel: 5.777 tCO₂e
Scope 2 (Indirect Energy) 2.413 tCO₂e
Electricity: 2.413 tCO₂e
Scope 3 (Indirect Other) 11.070 tCO₂e
Business Travel: 11.070 tCO₂e
Total Carbon Footprint 20.869 tCO₂e

Annual emissions calculated

Emissions Context

• Equivalent to 45,371 miles driven by an average car

• Equal to 8.3 homes' energy use for one year

• Offsets 960 tree seedlings grown for 10 years

Export Results

Download or share your carbon footprint calculation

20.869 tCO₂e
Total Emissions
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• Results calculated using UK DEFRA 2025 emission factors and GHG Protocol standards

• CSV export suitable for further analysis and custom reporting

• Sign up for automated calculations, API access, and compliance reporting

UK DEFRA 2025 Emission Factors

0.193
kgCO2e/kWh
UK Electricity Grid
0.184
kgCO2e/kWh
Natural Gas
2.687
kgCO2e/litre
Diesel Fuel
0.246
kgCO2e/km
Domestic Flights

Advanced Calculation Features

Comprehensive emissions tracking across all GHG Protocol scopes

Scope 1 Direct

Direct emissions from sources owned or controlled by your organization.

  • • Fuel combustion
  • • Company vehicles
  • • Process emissions
  • • Refrigerant leaks

Scope 2 Energy

Indirect emissions from purchased electricity, steam, heating and cooling.

  • • Grid electricity
  • • Purchased steam
  • • District heating
  • • Location & market-based

Scope 3 Value Chain

All other indirect emissions in your value chain.

  • • Business travel
  • • Employee commuting
  • • Supply chain
  • • Waste & water

DEFRA Verified

All calculations use latest UK Government emission factors.

  • • 2025 DEFRA factors
  • • Annually updated
  • • GHG Protocol aligned
  • • Audit-ready results

Real-time Processing

Instant calculations as data is ingested from your systems.

  • • Automated processing
  • • Live updates
  • • Bulk calculations
  • • API integration

Custom Factors

Support for organization-specific emission factors when needed.

  • • Supplier-specific data
  • • Regional factors
  • • Custom methodologies
  • • Override capability

Ready to Calculate Your Carbon Footprint?

Start with automated calculations using the latest UK 2025 emission factors

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