If you like hoagie sandwiches but can't find any nutritional value on a store bought one (like Walmart's 'Marketside'), or are making a homemade sub, you may find the following calculators very helpful for estimates on caloric value:
BLIMPIE:
Blimpie Sub Calorie Calculator - Eddie On Everything
SUBWAY:
Subway Sandwich Calorie & Carb Nutrition Calculator - Eddie On Everything
Cheers!