Methodology

How LeafCalc Calculates Carbon Emissions

LeafCalc uses internationally recognized carbon accounting principles to estimate greenhouse gas emissions across Scope 1, Scope 2, and Scope 3 activities.

Our methodology is designed to provide transparent, explainable, and actionable carbon footprint calculations for organizations of all sizes.

Activity Data
Emission Factors
Calculation Engine
Carbon Footprint
Framework

Our Carbon Accounting Framework

LeafCalc aligns its calculations with globally recognized greenhouse gas accounting practices including principles established by the Greenhouse Gas Protocol and widely used carbon reporting standards.

Direct Emissions

Scope 1

Direct emissions generated from owned or controlled sources.

Examples

  • Company vehicles
  • Diesel generators
  • Fuel combustion

Purchased Energy

Scope 2

Indirect emissions from purchased electricity, heating, and cooling.

Examples

  • Office electricity
  • Purchased energy

Value Chain

Scope 3

Indirect emissions across the value chain.

Examples

  • Business travel
  • Purchased goods
  • Employee commuting
  • Transportation
Process

Calculation Process

Every carbon footprint follows a transparent five-step workflow from raw inputs to verified results.

STEP 01

Data Collection

LeafCalc gathers activity data such as electricity consumption, fuel usage, travel distance, and procurement information.

STEP 02

Data Normalization

Collected data is standardized into consistent units.

  • Liters
  • kWh
  • Kilometers
  • Tonnes
STEP 03

Emission Factor Matching

The system maps activity data to relevant emission factors.

Example1000 kWh Electricity × Regional Electricity Factor = Estimated CO₂e
STEP 04

Calculation Engine

Activity data is multiplied by appropriate emission factors.

Formula

CO2e=Activity Data×Emission Factor
STEP 05

Result Generation

Results are categorized into Scope 1, Scope 2 and Scope 3, and visualized through dashboards and reports.

  • Scope 1
  • Scope 2
  • Scope 3
Emission Factors

Emission Factors We Use

Emission factors represent the average greenhouse gas emissions associated with a unit of activity.

Activity
Emission Factor
  • Electricity
    kg CO₂e / kWh
  • Diesel
    kg CO₂e / litre
  • Petrol
    kg CO₂e / litre
  • Flights
    kg CO₂e / passenger-km
Transparency

Transparency Principles

Explainable

Every calculation can be traced to source inputs.

Consistent

The same methodology is applied across calculations.

Reproducible

Results can be independently verified.

Actionable

Insights are designed to support reduction strategies.

Coverage

Current Coverage

We focus on what we can measure accurately today, and are transparent about what is still on the roadmap.

Currently Supported

  • Electricity Consumption
  • Fuel Usage
  • Business Travel
  • Employee Commuting
  • Transportation Activities

Planned Expansion

  • Procurement Emissions
  • Supplier Data Integration
  • Automated Scope 3 Mapping
  • AI-Powered Recommendations
Roadmap

Future Methodology Roadmap

A staged plan to evolve from verified baseline accounting to AI-driven carbon intelligence.

01

Core Scope 1 & 2 Accounting

Establish a verified baseline across direct operations and purchased energy.

Phase 01
02

Advanced Scope 3 Coverage

Expand into value chain categories with high-impact supplier inputs.

Phase 02
03

Automated Data Integrations

Connect directly to utility, travel and procurement platforms.

Phase 03
04

AI Carbon Intelligence

Surface reduction opportunities through predictive modeling and benchmarks.

Phase 04

Ready to see your footprint?

Join the early access list and be the first to turn activity data into a clear reduction plan.

Back to home