Sparks only lists diameter (and not length) nor weight. A 6 inch 2.25" diameter potato will have more mass & calories than a 4 inch 2.25" diameter potato. And their diameter ranges overlap so I'm scratching my head at Sparks on this.
Sorry - wish I could be of more help. Curious how the cooks out there reply to this question! Maybe post your Q on Spark Recipes?
SparkPeople, SparkCoach, SparkPages, SparkPoints, SparkDiet, SparkAmerica, SparkRecipes, DailySpark, and other marks are trademarks of SparkPeople, Inc. All Rights Reserved. No portion of this website can be used without the permission of SparkPeople or its authorized affiliates.
SPARKPEOPLE is a registered trademark of SparkPeople, Inc. in the United States, European Union, Canada, and Australia. All rights reserved.