Your carbon savings
Calculate the environmental impact of refurbishing your devices.
Every reused device is CO₂e not emitted, e-waste not created, a life changed.
Choose a device type, enter how many you are retiring, and add a line for each type.
Enter your devices to refurbish:
You save
0 kg CO₂e
Where we have manufacturer data for a model, we use it. Where we do not, we use an average for that device type and brand.
0 miles
miles driven by an average petrol car
0 mature trees
mature trees sequestering carbon for a year
0 m³
m³ of water saved
How we calculate these numbers
01 The carbon footprint of a laptop
An average laptop contributes 369.49 kg of CO₂e across four phases: manufacturing, use, transportation and recycling. Manufacturing alone contributes 281.48 kg, 76% of the total.
02 Carbon savings from reuse
A reused laptop saves 298.75 kg of CO₂e, 80.85% of its total carbon footprint. Reuse means the manufacturing and the significant international journey of a new device are avoided. A reused device produces emissions from its use phase only. Our own transport and our refurbishing activities are assessed as not significant next to a new device's journey across continents.
03 The tree analogy
We translate the kg of CO₂e saved into the number of trees it would take to absorb the same amount in one year. The European Environment Agency puts a tree's absorption at 22 kg of CO₂e a year, so we divide by 22. Miles driven and m³ of water: car miles at 404 g CO₂e per mile, US EPA; water at an estimated 11,350 litres per tonne of CO₂e avoided.
We keep iterating our database so it stays up to date with manufacturer-provided data and academic studies. Where we do not have data for a specific model, we use an average based on the device type and brand.
35%
of the laptops and desktop PCs that large organisations destroy are still working when they are destroyed. We prioritise reuse over recycling. Reuse consumes far fewer natural resources than recycling and emits less carbon.
Emissions and waste reduced
We quantify every tonne avoided and every device diverted. Clean, traceable numbers you can stand behind.
You can report avoided emissions from reuse under GHG Protocol Scope 3 Category 5, in a format that works with GRI, TCFD and SASB. Traceable Scope 3 reduction data, for your ESG reporting, not just ours.
The calculator gives you the estimate. A collection with us gives you the record behind it: every device received, what happened to it, and the emissions it avoided, device by device, with a reconciliation report within 48 hours.
2,700
tonnes of CO₂ avoided.
Metropolitan Police Service, 21,425 devices. The annual energy-related emissions of 1,013 UK households.
239
tonnes of CO₂e avoided.
LGT, phase 1, 718 devices, 94.7% repurposed.
Proof, not promises. Every tonne of CO₂ avoided, every device diverted, every life changed, tracked and reported.
