Strength Training Calories Calculator

Strength Training Calories Formula

The basic calculator uses total workout time. The advanced calculator uses sets, reps, pace, load, and rest time.

• BW = body weight in pounds
• Minutes = total workout time in minutes
• Training Factor = 0.028 for light lifting, 0.040 for a standard lifting workout, 0.048 for hard lifting, and 0.063 for circuit lifting
• SecPerRep = average seconds per rep
• RestSec = rest between sets in seconds
• In advanced mode, average weight lifted raises the lifting factor slightly

Calories burned during strength training

Three inputs drive the total most: body size, session length, and how much rest separates working sets. Short-rest circuits and supersets burn more calories per minute than heavy sets with long breaks.

Body Weight	30 min Light	30 min Standard	30 min Hard	30 min Circuit
125 lb	105 kcal	150 kcal	180 kcal	236 kcal
155 lb	130 kcal	186 kcal	223 kcal	293 kcal
185 lb	155 kcal	222 kcal	266 kcal	353 kcal
215 lb	181 kcal	258 kcal	310 kcal	410 kcal

Basic and advanced mode

• Basic mode: best when you know your total workout time and want a fast answer.
• Advanced mode: best when you want sets, reps, average weight lifted, rep speed, and rest between sets to drive the result.
• Higher calories per minute: more total work, shorter rest, and denser sessions.
• Lower calories per minute: longer rest periods, fewer working reps, and slower session pace.

How to calculate calories burned while strength training

Example: A person weighs 175 lb, lifts for 45 minutes, and chooses a hard lifting workout.

Calories = BW × Minutes × Training Factor

Calories = 175 × 45 × 0.048

Calories = 378 kcal