Free WordPress Plugin: This macronutrient calculator computes macronutrient requirements relative to age, physical attributes, exercise level, and body weight objectives. www.calculator.io/macro-calculator/

SmartCook is an online cookbook, foodplanner and macronutrient tracker. It can help you make cooking and eating healthier easier than ever. It uses the USDA FoodData Central API for the macronutrients and also makes it easier to import recipes from anywhere.