3 calculatorsTips, recipes, and pets
Everyday Life
Everyday calculators answer the small questions that come up at the table and at home. Work out a tip and split the bill among friends, scale a recipe up or down to the number of servings you need, or estimate your dog's age in human years based on size. Each one shows how the number is worked out, so you can adjust it to your own habits.
- Tip Calculator Free tip calculator: enter the bill and tip percentage to see the tip, the total and each person's share, with optional rounding up of the total or shares.
- Recipe Serving Calculator Recipe serving calculator: scale a recipe to any number of servings and get ingredient amounts rounded to measuring-cup fractions, with tsp, tbsp and cups.
- Dog Age Calculator Dog age calculator: convert your dog's age to human years by size, compare the UC San Diego DNA formula with the ×7 rule and see your dog's life stage.