The sit-stand test calculator uses the 30-second chair stand test, a validated clinical measure of lower body strength used in fall-risk assessment. Count how many times you can sit and stand from a chair in 30 seconds and compare your result to age-based norms.
Setup
Enter Your Score
Count only full sit-to-stand cycles (hands on chest, not arms)
30-Second Chair Stand Norms (reps)
| Age Group | Women (Below/Average/Good) | Men (Below/Average/Good) |
|---|---|---|
| 40–49 | <13 / 13–15 / 16+ | <15 / 15–17 / 18+ |
| 50–59 | <12 / 12–14 / 15+ | <14 / 14–16 / 17+ |
| 60–64 | <12 / 12–16 / 17+ | <14 / 14–17 / 18+ |
| 65–69 | <11 / 11–15 / 16+ | <12 / 12–16 / 17+ |
| 70–74 | <10 / 10–14 / 15+ | <12 / 12–15 / 16+ |
| 75–79 | <10 / 10–13 / 14+ | <11 / 11–14 / 15+ |
| 80–84 | <9 / 9–12 / 13+ | <10 / 10–13 / 14+ |
| 85+ | <8 / 8–11 / 12+ | <8 / 8–11 / 12+ |
How to Use the Sit-Stand Test Calculator
The 30-second chair stand test is a validated clinical measure developed by Rikli and Jones for assessing lower body strength in older adults. It's used in geriatric assessments, fall-risk screening, and physical therapy evaluations worldwide. Unlike equipment-based strength tests, it requires only a chair.
Equipment
Use a sturdy chair without arms, with a seat height of approximately 17 inches (43 cm). Position the chair against a wall to prevent it from sliding. Wear comfortable shoes and have someone spot you if balance is a concern.
Test Procedure
Sit in the middle of the chair, back straight, feet flat on the floor (shoulder-width apart), and arms crossed over your chest. When the timer starts, rise to a full standing position, then return completely to sitting. That counts as one repetition. Continue as many times as possible in 30 seconds without using your arms. If you are at a standing position when 30 seconds ends, count that as a full repetition.
Interpreting Your Results
Compare your repetitions to the age and sex norms in the reference table. "Below average" scores suggest lower body strength that may affect daily activities and fall risk. "Average" scores indicate adequate functional strength. "Good" scores indicate above-average lower body function for your age. Repeat the test periodically (every 4–8 weeks during a training program) to track progress.
FAQ
Is this sit-stand test calculator free?
Yes, completely free with no signup required. Count your chair stand repetitions, enter the number, and compare to age-based norms instantly.
How do I perform the 30-second chair stand test?
Use a sturdy chair with a seat about 17 inches high. Sit in the middle of the chair with back straight, arms crossed over your chest. On 'Go,' stand fully upright, then sit completely back down. Count full stand-sit cycles in exactly 30 seconds. Do not use your arms to push off. A half-rep at the 30-second mark counts.
What is a good score on the sit-stand test?
Norms vary by age and sex. For adults aged 60-64, a good score is 14+ (women) or 16+ (men). For younger adults aged 40-49, expect 16+ (women) or 18+ (men). The test is primarily used with older adults but has value across ages as a lower body strength indicator.
What does a low sit-stand test score indicate?
A low score suggests reduced lower body strength and potentially elevated fall risk. The 30-second chair stand test is validated for predicting falls in older adults. Scores below age norms correlate with reduced mobility, slower walking speed, and increased disability risk.
How can I improve my sit-stand score?
Squats, lunges, step-ups, and leg press exercises all build the quadriceps and hip extensors that power sit-to-stand movement. Practice the chair stand itself as exercise — start with 3 sets of 10 per day, progressing as strength increases. Even 2-3 sessions per week produces measurable improvement in 4–6 weeks.