How long should my workout be?
- Alexandra Castillo
- Aug 29, 2023
- 2 min read
Updated: Mar 28

How Long Should Your Workout Be?
Short answer: It depends.
Longer answer: The ideal workout length varies based on your goals, fitness level, type of exercise, and lifestyle. Some people thrive on quick, intense sessions, while others need longer, steady workouts. The key is finding what works for you.
The “Minimum Effective Dose”
More isn’t always better—but enough is necessary.
According to the World Health Organization (WHO), the minimum recommended amount of exercise for general health is:
✔ 150 minutes of moderate-intensity (brisk walking, cycling, light jogging) OR
✔ 75 minutes of vigorous-intensity (HIIT, sprinting, heavy lifting) per week
That’s just 20–30 minutes a day if you break it up right.
The Law of Diminishing Returns
Ever heard the phrase, “Work smarter, not harder”?
✅ More exercise = more benefits… to a point.
🚫 Too much = risk of injury, burnout, and overtraining.
Your sweet spot is where you get the best results without overdoing it.
How Workout Length Changes Based on…
🟢 Intensity:
• Short & intense? 20-30 minutes can be enough (think HIIT or heavy lifting).
• Lower intensity? You might need longer (like a 60-minute steady-state cardio session).
🟢 Workout Type:
• Strength Training? 30–60 minutes, depending on rest times.
• Endurance Training? Longer sessions (up to 90 minutes or more for marathon prep).
• HIIT? 20–30 minutes is plenty—if done properly.
🟢 Frequency:
• If you train daily, you might keep sessions shorter to allow recovery.
• If you work out 3-4 times a week, you may go longer each session.
🟢 Your Goals:
• General fitness? 30-45 minutes is usually enough.
• Fat loss? Focus more on intensity & consistency over sheer workout length.
• Muscle gain? 45-60 minutes per session is common.
• Performance-based goals (e.g., running a marathon)? Longer, specialized training sessions may be needed.
The Sleep Factor: Prioritize Recovery
Here’s the hard truth: If a long workout cuts into your sleep, it’s not worth it.
Sleep is the foundation of recovery, performance, and fat loss. 6 hours of sleep + a 90-minute workout? Not great. 8 hours of sleep + a 30-minute focused workout? Way better.
Moral of the story: Never trade sleep for extra gym time.
So… What’s the Best Workout Length?
There’s no one-size-fits-all answer—but a good rule of thumb:
✔ 20-30 minutes → Great for busy people who want quick, intense workouts.
✔ 30-45 minutes → Ideal for general fitness and most training styles.
✔ 45-60+ minutes → Best for athletic training, endurance sports, or serious strength building.
💡 The real key? Consistency. A 30-minute workout 5x a week is better than a 90-minute session you only do once in a while.
Final Thoughts
Don’t stress about hitting a magic number for workout time. Instead, ask yourself:
✔ Am I training with enough intensity?
✔ Am I recovering well (sleep, nutrition, stress management)?
✔ Is my workout schedule realistic and sustainable?
Find your balance, listen to your body, and adjust as needed. A personalized approach always wins.
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