Green and Sustainable Tools and Calculators
R-Value Calculator
R-Value calculator to work out the total R-Value of a set of materials, say in a wall or ceiling.R-Value Area Calculator
Calculator to help work out the total R-Value of a wall with a window or other fitting within it.Insulation Batts Coverage Calculator
Calculator for the number of insulation batt packs required for a ceiling or wall. Also works out how downlights effect the final insulation R-Value.R-value to U-value Calculator
R-value to U-value conversion calculatorSolar Power Calculator
Calculator for the power solar panels will generate each season based on latitude or nearest town or city worldwide. Also works out off grid energy savings of going solar powered..Passive Solar Design Eaves Calculator
Calculator to work out the ideal Eave depth for a given height of window and world location; so the Sun comes in in Winter but not Summer.Units Conversion Calculator
Interactive conversion Calculator for multiple units and measurements. Simple to use.Solar Wiring Size Calculator
Interactive Solar Panel Wiring Size Calculator. Makes sure your wiring is the right size for a given distance, power and voltage drop. Works in metric or imperial.Solar System Savings Calculator
Interactive calculator to help work out the savings from installing a solar power system and when it breaks even. Can factor in Feed in Tariffs, rising electrical bill costs and comparative investment returns.Underfloor heating running cost calculator
Helps you work out the running cost of electric based underfloor heating taking into account peak and off-peak electricity pricesRoom Area Calculator
Easily work out the floor area, volume and wall area of a given room.Rainfall and rain harvesting calculator
This rainfall calculator will work out what your expected 'rough' average monthly rainfall should be from the nearest measuring stations for which we have publicly usable data. Also if you supply the width and length of your roof you will be told the amount of water you can collect.Green Home Loan Repayment Calculator
Works out the repayments on a home loan and displays a handy graph to show you how quickly you are paying off the loan. Also allows you to check how green your house is and if the money saved could help pay off the loan sooner.Rainwater Harvesting Calculator
Works out what your expected rainfall capture should be over a given year, along with your minimal tank size to have constant water given an average monthly demand. Can take monthly rainfall figures from BOM site direct.