Training Max vs True Max: How to Calculate Your Working Weights

Most strength programs prescribe weights as percentages of your max. But which max? Your true 1RM that you grind out on your best day? Or something more conservative? Understanding training maxes and how to calculate working weights makes any percentage-based program work better.

The Problem with True Maxes

Your true 1RM (one rep max) is the absolute most you can lift—once, with maximum effort, on your best day.

Why it's problematic for training:

• You're not at your best every day
• Grinding maxes is fatiguing
• High injury risk at true max
• Daily readiness varies 10-15%
• Testing 1RM frequently is impractical

Example: Your true max squat is 300 lbs. Program says 85% = 255 lbs for 5 reps. On a bad day, 255 for 5 might be impossible—or dangerous.

The Training Max Solution

A training max (TM) is a submaximal number used to calculate working weights.

Typically: 85-90% of your true 1RM

Example:

• True 1RM: 300 lbs
• Training Max (90%): 270 lbs
• Program says 85% for 5 reps
• 85% of TM = 230 lbs (not 255)

Now you have built-in margin for bad days while still training productively.

How to Find Your Training Max

Option 1: Test True Max, Calculate TM

1. Test actual 1RM (carefully, with spotters)
2. Multiply by 0.85-0.90
3. Use that number for program calculations

Example:

• Test: Bench 1RM = 225 lbs
• TM (90%): 225 × 0.90 = 203 lbs (round to 205)
• TM (85%): 225 × 0.85 = 191 lbs (round to 190)

Option 2: Rep Max Estimate

Test a rep max and estimate your 1RM, then calculate TM:

1. Warm up thoroughly
2. Do a set of 3-5 reps at challenging weight
3. Use formula to estimate 1RM
4. Calculate TM from estimate

Formulas (most popular):

• Epley: 1RM = Weight × (1 + Reps/30)
• Brzycki: 1RM = Weight × (36 / (37 - Reps))

Example:

• You do 185 lbs for 5 reps
• Epley: 185 × (1 + 5/30) = 185 × 1.167 = 216 lbs
• TM (90%): 216 × 0.90 = 194 lbs (round to 195)

Option 3: Bar Speed Method

Choose a weight you can move FAST for the prescribed reps:

• Last rep should be clean and explosive
• Not grinding or slow
• This is approximately your TM

Example: The heaviest weight you can squat for 5 fast, crisp reps is roughly your 85% TM.

Percentage Charts

Standard 1RM Percentage Chart

| % of 1RM | Typical Reps Possible | |----------|----------------------| | 100% | 1 | | 95% | 2 | | 90% | 3-4 | | 85% | 5-6 | | 80% | 7-8 | | 75% | 10 | | 70% | 12 | | 65% | 15 | | 60% | 18-20 |

These are averages—individual variation exists.

Rep Max Estimations

| Reps Done | Approximate % of 1RM | |-----------|---------------------| | 1 | 100% | | 2 | 95% | | 3 | 93% | | 4 | 90% | | 5 | 87% | | 6 | 85% | | 7 | 83% | | 8 | 80% | | 10 | 75% | | 12 | 70% |

To estimate 1RM from reps: Divide weight used by the percentage.

Example: 200 lbs for 5 reps

• 5 reps ≈ 87% of 1RM
• Estimated 1RM = 200 / 0.87 = 230 lbs

Using Training Max in Programs

5/3/1 (Jim Wendler)

Uses 90% TM explicitly:

• True 1RM = 300 lbs
• TM = 270 lbs
• Week 1: 65%, 75%, 85% of TM
• Actually lifting: 175, 203, 230 lbs

GZCL Method

Uses rep maxes:

• T1 (main work): Based on 2-3RM
• T2 (supplemental): Based on 5RM or lighter

Percentage-Based Programs Generally

Most can use TM approach:

• Calculate TM from tested or estimated 1RM
• Apply program percentages to TM
• Build in room for bad days and progression

When to Adjust Your Training Max

Increase TM When:

• Hitting prescribed reps easily
• AMRAP sets going well beyond minimum
• Program specifies increases (usually 5-10 lbs monthly for upper, 10-20 for lower)

Decrease TM When:

• Missing prescribed reps
• Form breaking down
• Grinding every set
• Coming back from layoff
• Recovery issues (sleep, stress, illness)

Reset TM When:

• After extended break (weeks+)
• New program cycle
• Testing new max
• Major life stress period

Practical Calculations

Setting Up a New Program

Step 1: Determine your 1RM (test or estimate)

Step 2: Calculate TM (multiply by 0.85-0.90)

Step 3: Calculate weights for each workout

Example for 5/3/1:

• Squat 1RM: 315 lbs
• TM (90%): 284 lbs (round to 285)

| Week | Set 1 | Set 2 | Set 3 (AMRAP) | |------|-------|-------|---------------| | Week 1 | 65% = 185 | 75% = 215 | 85% = 245 | | Week 2 | 70% = 200 | 80% = 230 | 90% = 255 | | Week 3 | 75% = 215 | 85% = 245 | 95% = 270 |

Quick Mental Math

Round to easy numbers:

• 90% ≈ Subtract 10%
• 85% ≈ Subtract 15%
• 80% ≈ Subtract 20%
• 75% ≈ Three-quarters
• 70% ≈ Subtract 30%

Example: TM = 300

• 85% = 300 - 45 = 255
• 80% = 300 - 60 = 240
• 75% = 300 × 3/4 = 225

Using Plate Math

For quick calculations, know your bar + plate combos:

| Total Weight | Setup | |-------------|-------| | 135 | Bar + 45s | | 185 | Bar + 45s + 25s | | 225 | Bar + 2×45s | | 275 | Bar + 2×45s + 25s | | 315 | Bar + 3×45s |

Then fine-tune with 10s, 5s, and 2.5s.

Common Mistakes

1. Using True Max

Training at true max percentages leaves no room for error. Use TM instead.

2. Ego Inflating Numbers

Be honest about your max. An inflated TM means unachievable working weights.

3. Never Adjusting

TM should change as you get stronger—or when life interferes with training.

4. Testing Too Often

No need to test true 1RM frequently. Rep PRs on AMRAP sets indicate progress without max testing.

5. Ignoring Bar Speed

If percentages feel heavy and slow, your TM is too high. Quality reps should be fast.

For Different Training Goals

Strength/Powerlifting

• TM: 90% of true max
• Work primarily at 70-90% of TM
• Heavy singles occasionally at 95-100% of TM

Hypertrophy/Bodybuilding

• TM less critical (not training near max often)
• Use rep ranges more than percentages
• When using %: 85% TM is fine

Athletic Performance

• TM: 85-90%
• More submaximal, speed-focused work
• Quality over grind

Rehabilitation

• Conservative: 70-80% of pre-injury max
• Progress gradually
• Pain-free movement priority

Calculating for Different Rep Schemes

Sets of 5

• Good working weight: 80-85% of TM
• Challenge set: 85-90% of TM

Sets of 3

• Working weight: 85-90% of TM
• Challenge set: 90-95% of TM

Sets of 8-10

• Working weight: 70-75% of TM
• Challenge set: 75-80% of TM

Singles

• Working singles: 90-95% of TM
• Max effort: 95-100%+ of TM (infrequently)

Apps and Tools

Many apps calculate this automatically:

• Wendler 5/3/1 apps
• GZCL apps
• Strong app (tracks rep maxes)
• Spreadsheets (many free templates online)

Or simple calculator:

1. Input true max
2. Calculate TM (×0.90)
3. Calculate daily weights from TM

The Bottom Line

Training max = your honest max × 0.85-0.90

Using a training max instead of your true max:

1. Builds in margin for bad days
2. Allows for consistent progress
3. Reduces injury risk
4. Makes percentage programs actually work

When starting any new program:

1. Test or estimate your 1RM
2. Calculate TM at 85-90%
3. Base all working weights on TM
4. Adjust TM as you progress (or regress)

The best lifters train smart, not just hard. A proper training max lets you train consistently, progressively, and sustainably—which is how you actually get strong.