Food Storage Calculator - How much food does a family need?  This nifty calculator can let you know.

Water Intake Calculator - Find out how much water an individual needs based on their specific weight.

Cooking

Cooking Conversion Calculator - Converges different measurements for cooking.

 Printable Version of Cooking Conversion Chart

Environmental

Carbon Foot Print Calculator

Gardening/Mirco Farm

Seed Calculator - Find out how many seeds will be needed for a given amount of land.

Plants Per Acre Calculator – Find out how many plants will be needed per acre. 

Acres Into Square Feet Convergence Calculator - Acres into square feet conversion calculator for area conversions with additional tables and formulas.

Square Feet Into Acres Convergence Calculator - Square feet into acres conversion calculator.

Horse Feed Calculators - Find out how much hay your horse will need for a year.

Precious Metals

Precious Metal Calculator – Evaluates the current online price of all carat golds, silver, platinum, and palladium.  Uses current online prices for a variety of currencies.

Weapon and Ammunition Calculator

Winchester Ballistics Calculator

Remington Ballistics Calculator

Nuclear Weapons Effects Calculator

Nuclear Detonation in a City - Put in the longitude and latitude coordinates of a city and see what the effects of the weapon will be and how far the fall out will spread

Global Incident Map – Maps out terrorist and other suspicious activity