Plank / Push-up Test Calculator

What Is the Plank and Push-up Test Calculator?

This calculator scores your performance on two of the most common muscular endurance tests: the forearm plank hold and the maximum push-up test. Enter your age, gender, and either your plank hold time or your push-up rep count. The calculator compares your result to population norms from the American College of Sports Medicine (ACSM) and YMCA fitness assessment protocols, adjusted for age and gender, and assigns a rating from Poor to Excellent.

These tests require no equipment and can be done at home. They measure different things: the plank tests isometric core endurance, while the push-up tests dynamic upper body endurance. Both are useful for tracking your fitness over time. A 2018 study published in JAMA Network Open by Mandsager et al. found that higher levels of muscular fitness are associated with reduced all-cause mortality, independent of cardiorespiratory fitness. The push-up test in particular has been studied as a predictor of cardiovascular health: a 2019 study by Yang et al. in JAMA Network Open found that men who could complete more than 40 push-ups had a significantly lower risk of cardiovascular disease events compared to those who could complete fewer than 10.

The Plank Test

The forearm plank is an isometric core exercise. You support your body on your forearms and toes, with elbows directly under your shoulders and your body forming a straight line from head to heels. The test measures how long you can hold this position with proper form before your muscles fatigue.

The timer stops when any of the following happens: your hips sag toward the floor, your hips rise into a pike position, your lower back arches, or you lower yourself to the floor. The test measures core muscular endurance, which is associated with lower back health and functional movement quality. The deep core stabilizers (transverse abdominis, multifidus) are the primary muscles engaged.

Norms for the plank test come from population studies including the National Youth Fitness Survey. Among US youth aged 12 to 15, the middle 50% hold the plank for 59 to 122 seconds for boys and 42 to 103 seconds for girls. Adult norms are less standardized than push-up norms, but the thresholds in this calculator are based on commonly used fitness assessment benchmarks from ACSM and military fitness testing.

The Push-up Test

The push-up test measures upper body muscular endurance, specifically the endurance of the chest (pectoralis major), front shoulders (anterior deltoids), and triceps. You start in a high plank position with hands shoulder-width apart and lower your body until your elbows reach at least 90 degrees of flexion, then push back up to full arm extension. You complete as many reps as possible without resting, stopping when you cannot complete another rep with proper form.

The ACSM protocol uses a standard push-up position for men and a modified knee position for women. The norms in this calculator follow the standard ACSM push-up protocol. If you are a woman performing standard (toe) push-ups, your rating will be conservative because the female norms assume the modified position. If you want to compare yourself to standard push-up norms regardless of gender, use the male norms as a reference.

Rating Categories

The calculator uses six rating categories adjusted for age and gender. Here are the push-up thresholds for a 30-year-old:

These are population percentiles, not health thresholds. Scoring Average means you are in the middle of the population for your age and gender, not that you have a health problem. Scoring Poor means most people your age can do more, which suggests room for improvement. Push-up capacity falls substantially with each decade in both sexes, which is why the norms are age-adjusted.

How to Use the Calculator

1. Choose which test you want to score: plank or push-up.
2. Select your gender and enter your age. The rating thresholds adjust automatically.
3. Enter your plank hold time in seconds or your push-up rep count.
4. Your rating appears instantly, color-coded from Poor to Excellent.
5. Use the rating scale to see where you fall and what you need to reach the next level.

Example Calculations

Example 1: Plank Test for a 35-Year-Old Man

A 35-year-old man holds a forearm plank for 75 seconds.

• Rating: Good (for ages 30 to 39, Good is 75 to 99 seconds)
• Next level: Above Average starts at 50 seconds (already passed), Good starts at 75, Excellent starts at 100
• Improvement target: Add 25 seconds to reach Excellent

Example 2: Push-up Test for a 45-Year-Old Woman

A 45-year-old woman completes 12 modified push-ups.

• Rating: Above Average (for ages 40 to 49, Above Average is 11 to 14 reps)
• Next level: Good starts at 15 reps
• Improvement target: Add 3 reps to reach Good

Real-World Scenarios

Returning to Fitness After Injury

Sarah, a 42-year-old, recovered from a shoulder injury and wants to track her return to upper body strength. She takes the push-up test monthly. In month 1, she completes 8 modified push-ups (Average for her age). In month 2, she does 11 (Above Average). In month 3, she reaches 15 (Good). The objective numbers help her and her physical therapist see clear progress. She also tracks her core strength with the plank test, going from 25 seconds to 45 seconds over the same period. She pairs this with our Target Heart Rate Calculator to balance her cardio and strength training.

Office Worker Improving Core Strength

Mike, a 38-year-old software developer with chronic lower back pain, started doing planks daily on the advice of his physical therapist. His initial plank time was 20 seconds (Below Average for his age). After 8 weeks of progressive core training, including planks, side planks, and bird dogs, he held the plank for 55 seconds (Above Average). His back pain decreased significantly. Research has shown that core endurance exercises like the plank are more effective than core strength exercises for reducing lower back pain. Mike continues to test every 2 months to track maintenance.

Military Fitness Preparation

A 22-year-old man preparing for Army basic training needs to meet the minimum push-up standard. He uses the calculator to track his progress. His initial test shows 25 push-ups (Above Average for his age, but below the Army minimum of 35). He trains push-ups 4 times per week using greasing the groove, pyramids, and max-effort sets. After 6 weeks he reaches 42 push-ups (Excellent on the ACSM scale, above the Army minimum). He also uses the plank test to track core endurance, reaching 90 seconds (Good). He tracks his overall fitness with our Cooper Test Calculator for the running component.

Common Mistakes to Avoid

• Poor form on push-ups: Partial reps do not count. You must lower until your elbows reach at least 90 degrees and push back up to full extension. If your hips sag, your chest leads, or you do not lock out at the top, the rep does not count. Have a partner watch or record yourself to verify form.
• Letting the hips sag on the plank: The most common plank error is letting the hips drop toward the floor, which shifts the load from the core to the lower back and shoulders. If your hips sag, the timer stops. Squeeze your glutes and brace your abs to maintain a straight line.
• Comparing across protocols: Female push-up norms in this calculator assume the modified knee position. If you are a woman doing standard toe push-ups, your rating will be conservative. The 2026 Presidential Fitness Test uses right-angle push-ups for both sexes. Always compare results from the same protocol.
• Testing without a warmup: Testing cold increases injury risk and underestimates your true capacity. Do 5 to 10 minutes of light cardio and dynamic stretching, plus a few easy reps, before the test.
• Comparing to different age groups: Push-up and plank capacity decline with age. A 25-rep score is Average for a 25-year-old man but Good for a 45-year-old. Always use the age-adjusted rating, not the raw number, when comparing yourself to others or to your past self.

Authoritative Research and Resources

• Yang et al. (2019): Push-up Ability and Cardiovascular Disease Risk (JAMA Network Open) - A cohort study of 1,562 male firefighters over 10 years finding that those who could complete more than 40 push-ups had a 96% lower risk of cardiovascular disease events compared to those who could complete fewer than 10.
• American College of Sports Medicine (ACSM) - The leading sports medicine organization, which publishes the ACSM Guidelines for Exercise Testing and Prescription. The push-up and plank norms in this calculator are based on ACSM and YMCA fitness assessment protocols.
• CDC: Measuring Physical Activity Intensity - The Centers for Disease Control and Prevention resource on measuring physical activity, including muscular fitness tests and guidelines for adults.