Responsible Purchasing Network
  • Cleaners Guide
  • Computers Guide
  • Office Electronics Guide
  • Fleets Guide
  • Lighting Guide
  • Paint Guide
  • Bottled Water Guide

Green 101: Calculator


Use these cost and benefit calculators to quantify the results of responsible purchasing.

 


Bottled Water
This Bottled Water Calculator, developed by RPN, compares the cost and environmental impacts of 16.9 oz. bottles of water with tap water.

Carbon Offsets Calculators
The Carbon Offsets Calculators can be used to measure GHG emissions associated with various business practices.

Cleaners Calculator
Quantify the environmental benefits of purchasing and using "green" janitorial services and products.

Climate Protection Calculators
Use these calculators to estimate Greenhouse Gas (GHG) and other climate protection related emissions from various product categories.

Computer Calculator
Use calculators from EPEAT and Energy Star to measure the impact of computers.

Food Services Calculators
Use these calculators to estimate costs and benefits related to energy, water, serviceware, and composting.

Hybrid Calculator
Use the Hybrid Calculator to compare hybrid electric (HEV) and conventional vehicles.

LED Calculators
These calculators can be used to estimate the savings obtained by using LEDs in traffic signals, street lighting and exit signs.

Office Electronics Calculators
Use calculators from ENERGY STAR and  to measure the impact of your imaging equipment in terms of cost savings and energy use.

Paper Calculator
Measure the environmental benefits of switching to recycled content copy papers.

Power Calculator
Use these tools to compile data on environmental impacts of electricity consumption.

Toner Cartridges Calculator
Compare costs and wastes associated with reman and OEM cartridges.
 
Lighting Calculators
Use calculators from ENERGY STAR and two CFL manufacturers to measure the impact of your institution’s lighting in terms of cost savings and mercury content.

Feedback on this Guide

Please contact us with corrections, additions, policies, or questions.
Submit Feedback

Login

Username (email):
Password (forgot?):