Nautical Mile vs. Mile. While mile is a unit of distance on land, a nautical mile is used to measure distances at sea. 1 nautical mile = 1.151 mi. 1  Kilometer vs Mile.  Celsius vs Fahrenheit.
1 According to The Dog Food Project, dog food will cost $160-$250 per year for a moderately active mid-sized dog. 2  The overall average price per year is $100-$300. 3  This price largely depends on the size of the dog and the quality of the dog food. Therefore, the higher quality of the food, the longer it will last. 2  A wellness type of dog food that is recommended for dogs that are either on a diet or need a special blend formula can cost anywhere from $23 to $55 per bag.
Dry Pet Food Storage. Feed opened dry dog food for a maximum of six weeks only. Use By (or Best Used By, etc.) dates apply to sealed bags only. After six weeks, the nutritional value of the dog food is substantially lower than when the bag is first opened. To help you keep track, date the bag of dog food with a marker when you open it, and throw out any kibble remaining after six weeks. Never buy dog food with harmful artificial preservatives.