Active calorie burn and total burn are distinctly different. You'll find the difference between the two described below.
Active Calorie Burn
Active calorie burn is an estimate of the calories you burn over the course of the day through exercise or other activity. It captures the calories you've burned while walking, training, or partaking in other physical activities.
Tracking your active calorie burn can help you balance your activity output and calorie intake. Active calorie burn can be found on your Home 
and Activity tabs and appears as the numerator in your Activity Goal Progress.
If you’re looking to boost your activity levels in general, or achieve higher fitness goals, monitoring active calorie burn by paying attention to your Activity Goal Progress can help. When this numerator is higher, it means you’ve engaged in more intentional movement and activity. Paying attention to days when your active calorie burn is higher can also help you recognize the need for additional recovery time and refueling through proper nutrition and hydration.
Total Burn
Total burn, on the other hand, is the total number of calories you burn over the course of a full 24 hours, resting or otherwise. Every day, Oura begins calculating your total burn at 4am as your metabolism starts to gear up for all daytime functions and activities. This initial calculation is done using your BMR (Basal Metabolic Rate), which is the number of calories your body needs to sustain itself and all your vital functions (i.e. breathing, digesting, circulating blood, etc.). Additional calories are added to your total burn count as you continue to move throughout the day and complete any form of exercise.
Total burn can be found on your Activity tab, above your step count.
Keep in mind that if you don’t wear your ring while exercising or engaging in physical activity, your active calorie burn may be slightly off. This is why we recommend manually adding workouts or importing your workouts from third-party apps to ensure that your active calorie burn is reflective of the efforts you’ve put forth (if you decide to not wear your ring while partaking in specific physical activities).
