You'll also want people to RSVP so you have a head count for the caterer. If, on the other hand, your rehearsal dinner will be fairly low-key or small (think: a party at a restaurant or an intimate gathering at your future in-laws' home) then you don't need to be as official with your invitations.
The exact nutritional value of an orange depends on its variety. According to the U.S. Department of Agriculture, a standard-sized navel orange contains 69 calories, 17.6 grams of carbohydrates and 11.9 grams of sugar.
Are there many calories in an orange? To get this answer, you will need to determine the type of orange, how it is served and the portion of the orange. Knowing all of these facts can help you determine how many calories there are in an orange. A small orange that weighs about 96 grams and is 2 to 3 inches in diameter will have 45 calories. A medium orange that weighs about 131 grams and is 2 to 5 inches in diameter will have 62 calories. A large orange that weighs about 184 grams and is 3 to 6 inches in diameter will have 87 calories. A cup of orange pieces that weighs about 180 grams will have 85 calories. A serving of 100 grams of oranges will have 47 calories. An ounce of oranges will have 13 calories. In half a cup of canned mandarin oranges in light syrup that weighs 4.3 ounces, there are 80 calories. In a can of mandarin oranges in light syrup that weighs 11 ounces, there are 205 calories. In a cup of orange juice that weighs 248 grams there are 111 calories.