Compare experimental results against accepted values with percent error.
Compare experimental results against accepted values with percent error.
Enter values above and click Calculate — results will appear here with the formula explained.
Science demands honesty about imprecision. Percent error quantifies how far a measurement strays from the accepted value, normalized by that value's size — so missing gravity by 0.09 reads identically whether measuring 9.81 or 981.
Direction deliberately vanishes inside absolute-value bars: percent error reports spread, not systematic bias. Labs track both separately — consistent 'measured low' results across trials reveal calibration problems that any single error percentage would mask.
Advertisement
AdSense ready — add NEXT_PUBLIC_GOOGLE_ADSENSE_PUBLISHER_ID
Percent Error Calculator: Compare experimental results against accepted values with percent error. Formula: % error = |experimental − accepted| ÷ |accepted| × 100. Example: A lab pendulum yields g = 9.
Science demands honesty about imprecision. Percent error quantifies how far a measurement strays from the accepted value, normalized by that value's size — so missing gravity by 0.09 reads identically whether measuring 9.81 or 981.
Direction deliberately vanishes inside absolute-value bars: percent error reports spread, not systematic bias. Labs track both separately — consistent 'measured low' results across trials reveal calibration problems that any single error percentage would mask.
Advertisement
AdSense ready — add NEXT_PUBLIC_GOOGLE_ADSENSE_PUBLISHER_ID
A lab pendulum yields g = 9.72 m/s² against 9.81 accepted: |9.72 − 9.81| ÷ 9.81 × 100 ≈ 0.92% — respectable for student apparatus.
Advertisement
AdSense ready — add NEXT_PUBLIC_GOOGLE_ADSENSE_PUBLISHER_ID