🏊 Swim Calorie & Pace Calculator

Enter distance and time to instantly see calories and pace

Stroke

Weight (kg)

Distance (meters)

Duration (minutes)

Duration (seconds)

Calories burned (kcal)

Pace (per 100m)

Average speed (km/h)

Calories per hour (kcal/h)

💡 Calories are estimated using MET (metabolic equivalent) values. Actual burn varies with water temperature, technique and individual metabolism.

📖 How Swimming Calorie Calculation Works

How many calories does swimming burn?

Swimming is one of the most effective full-body exercises. For a 70 kg adult, 30 minutes of moderate freestyle burns roughly 290 kcal — about the same as jogging 4 km. Because water resistance is roughly 800 times that of air, swimming burns more calories per minute than most land-based cardio, with almost zero joint impact.

Calories by stroke (70 kg, 30 minutes)

Stroke	MET	30-min burn
Backstroke	4.8	~168 kcal
Freestyle (easy)	5.8	~203 kcal
Freestyle (moderate)	8.3	~291 kcal
Freestyle (vigorous)	9.8	~343 kcal
Breaststroke	10.3	~361 kcal
Butterfly	13.8	~483 kcal

Formulas

Calories (kcal) = MET × weight (kg) × duration (hours)

Pace (per 100m) = total seconds ÷ (distance ÷ 100)

Speed (km/h) = distance (m) ÷ 1000 ÷ duration (hours)

Typical pace reference

Beginner: 3:00–4:00 / 100m
Intermediate: 2:00–2:45 / 100m
Advanced amateur: 1:30–2:00 / 100m
Competitive: under 1:20 / 100m

How long should you swim to lose weight?

Aim for 30–60 minutes per session, 3–4 times per week. The key is staying in the aerobic zone (60–75% of max heart rate) and controlling intake afterwards — swimming makes you hungry, and a single post-swim meal can easily cancel the deficit.

How to track every session

Manual calculation gets old fast. SwimLog logs distance, time and pace with one tap, builds monthly trend charts, and rewards milestone achievements with custom medals.