guides & explainers
Blog
The formulas, conventions and tricks behind the tools.
Page 103 of 358
Family Electricity Bill Calculator — How It Works
Free family electricity bill calculator. Estimates electricity bill for family sustainability planning.
family electricity bill calculator
Family Fuel Emissions Calculator — How It Works
Free family fuel emissions calculator. Estimates fuel emissions for family sustainability planning.
family fuel emissions calculator
Family Gift Budget Calculator — How It Works
Calculates a total gift budget from the number of recipients and a per-gift amount.
Family Gift Budget Calculator
Family Green Commute Savings Calculator — How It Works
Calculates the cost and CO₂ savings from switching to a greener commute (biking, transit, or carpooling) instead of driving alone.
Family Green Commute Savings Calculator
Family Grocery Budget Calculator — How It Works
Estimates weekly and monthly grocery costs based on household size and spending per person.
Family Grocery Budget Calculator
Family Home Heating Cost Calculator — How It Works
Calculates the monthly and annual cost of home heating from energy usage.
Family Home Heating Cost Calculator
Family Laundry Load Calculator — How It Works
Calculates how many washing machine loads are needed for a given amount of laundry.
Family Laundry Load Calculator
Family LED Savings Calculator — How It Works
Calculates the energy cost savings from switching a light bulb to LED.
Family LED Savings Calculator
Family Pet Food Calculator — How It Works
Calculates how much food your pet needs per day and how long a bag will last.
Family Pet Food Calculator
Family Plastic Waste Calculator — How It Works
Estimates weekly and yearly plastic waste from bottles and bags.
Family Plastic Waste Calculator
Family Recycling Impact Calculator — How It Works
Calculates the financial value and estimated CO₂ savings from recycling materials.
Family Recycling Impact Calculator
Family Savings Jar Calculator — How It Works
Calculates how much to save each week to reach a savings goal by a target date.
Family Savings Jar Calculator