Strength Progress Tracker Calculator

Enter Training Data

Exercise Name

Unit

Tracked Weeks

Previous Session

Date

Working Weight (kg)

Reps

Sets

Session Duration (minutes)

Bodyweight (kg)

Current Session

Date

Working Weight (kg)

Reps

Sets

Session Duration (minutes)

Bodyweight (kg)

Planning and Goal Inputs

Planned Sessions

Completed Sessions

Target 1RM Growth (%)

Training Notes

Example Data Table

Exercise	Session	Weight	Reps	Sets	Duration	Bodyweight	Estimated 1RM	Volume
Back Squat	Previous	100 kg	5	5	48 min	78 kg	116.67 kg	2500 kg
Back Squat	Current	105 kg	5	5	46 min	78.5 kg	122.50 kg	2625 kg

This example shows a stronger estimated max, higher total volume, and slightly better session density.

Formula Used

Total Volume = Weight × Reps × Sets

Estimated 1RM = Weight × (1 + Reps ÷ 30)

Relative Strength = Estimated 1RM ÷ Bodyweight

Density = Total Volume ÷ Session Duration

Percent Change = ((Current − Previous) ÷ Previous) × 100

Consistency Rate = Completed Sessions ÷ Planned Sessions × 100

Weekly Strength Change = (Current Estimated 1RM − Previous Estimated 1RM) ÷ Tracked Weeks

Projected 1RM Goal = Current Estimated 1RM × (1 + Target Growth % ÷ 100)

The calculator uses the Epley equation for estimated one rep max. It works best for moderate rep ranges and consistent exercise technique.

How to Use This Calculator

Enter the exercise name and choose kilograms or pounds.
Fill in the previous session values for weight, reps, sets, duration, and bodyweight.
Fill in the current session with the same exercise for a fair comparison.
Add planned and completed session counts to measure training consistency.
Enter tracked weeks and a target growth percentage for projections.
Click Track Progress to show the result above the form.
Use the export buttons to save the report as CSV or PDF.

FAQs

1. What does this tracker measure?

It compares two sessions for the same exercise and measures estimated max strength, total volume, relative strength, density, weekly change, consistency, and projected progress goals.

2. Which max formula does the calculator use?

It uses the Epley estimated one rep max formula: weight × (1 + reps ÷ 30). This is widely used for practical strength tracking.

3. Why is bodyweight included?

Bodyweight helps calculate relative strength. That lets you compare performance quality even when your scale weight changes during a training phase.

4. What counts as progress?

Progress can appear as higher working weight, more reps, more sets, better estimated max, higher density, or better consistency across the same exercise.

5. Can volume improve while max strength drops?

Yes. You may handle more total workload through extra sets or reps while estimated peak strength remains flat or slightly lower.

6. What is session density?

Density is total volume divided by session time. A higher value means you completed more work per minute during the training session.

7. How often should I compare sessions?

Weekly or every few weeks works well. Compare the same exercise under similar conditions for cleaner and more useful strength trends.

8. Does this replace coaching or medical advice?

No. It is a performance tracking tool. Coaching judgment, recovery planning, and medical guidance still matter for safe training decisions.