Free One Rep Max (1RM) Calculators with AI Coach Insights
1RM Calculators provides science backed one rep max calculations with AI insights. This helps you train smarter, break plateaus, and achieve your fitness goals. So stop guessing, start calculating.
General 1RM Calculator
Estimate your one rep max for any exercise.
Or Choose a Specific Calculator
1RM Bench Press Calculator
Squat 1RM Calculator
1RM Deadlift Calculator
1RM Overhead Press Calculator
1RM Barbell Row Calculator
1RM Pull-Up / Chin-Up Calculator
1RM Weighted Dip Calculator
1RM Leg Press Calculator
1RM Bicep Curl Calculator
1RM Leg Curl Calculator
1RM Leg Extension Calculator
1RM Tricep Pushdown Calculator
Why Use Our 1RM Calculators?
Track Progress
Get accurate 1RM estimates to monitor your progress and strength gains over time.
Optimize Workouts
Use our AI-powered insights to get personalized and customized suggestions for weights and repetitions.
Train Intelligently
Understand your strength profile with detailed charts and percentage tables.
Expert Strength Training Insights
Why Use a 1RM Calculator?
A One Rep Max (1RM) calculator estimates the maximum weight you can lift for a single repetition with good form. Testing your true 1RM in the gym can be dangerous and exhausting. These calculators let you:
- Set safe, effective workout weights
- Train at the right intensity (like 70%, 80%, or 90% of your max)
- Track progress without risking injury
General Safety Precautions
- Always warm up properly before lifting heavy
- Focus on good form over weight
- Always use a spotter for heavy lifts, especially for exercises like bench press and squat
- Stop if you feel sharp pain or discomfort
- The 1RM calculation is an estimate. Do not attempt a true 1RM without proper preparation and supervision.