Schools / University of California, Santa Barbara
CHEM 109A
Summer 2010 – Spring 2026 (57 terms) · 18,288 students · Source:
The curve
Share of all students who received each grade, all terms combined.
20.8%
of students got an A
0.0% withdrew
A rate by term
Share of students who got an A in each term the course ran.
By term, newest first
ABCDFWOther
TermStudentsA rate / distributionGPASource
Spring 2026137
22.6%
—University of California, Santa Barbara grade distribution file, Winter 2026, Spring 2026, Summer 2026Winter 2026393
20.6%
—University of California, Santa Barbara grade distribution file, Winter 2026, Spring 2026, Summer 2026Fall 2025667
28.5%
—University of California, Santa Barbara grade distribution file, Winter 2025, Spring 2025, Summer 2025, Fall 2025Spring 2025140
18.6%
—University of California, Santa Barbara grade distribution file, Winter 2025, Spring 2025, Summer 2025, Fall 2025Winter 2025389
15.7%
—University of California, Santa Barbara grade distribution file, Winter 2025, Spring 2025, Summer 2025, Fall 2025Fall 2024645
29.3%
—University of California, Santa Barbara grade distribution file, Winter 2024, Spring 2024, Summer 2024, Fall 2024Summer 202418
16.7%
—University of California, Santa Barbara grade distribution file, Winter 2024, Spring 2024, Summer 2024, Fall 2024Spring 2024114
22.8%
—University of California, Santa Barbara grade distribution file, Winter 2024, Spring 2024, Summer 2024, Fall 2024Winter 2024445
13.9%
—University of California, Santa Barbara grade distribution file, Winter 2024, Spring 2024, Summer 2024, Fall 2024Fall 2023670
23.4%
—University of California, Santa Barbara grade distribution file, Winter 2023, Spring 2023, Summer 2023, Fall 2023Spring 202362
19.4%
—University of California, Santa Barbara grade distribution file, Winter 2023, Spring 2023, Summer 2023, Fall 2023Winter 2023288
11.5%
—University of California, Santa Barbara grade distribution file, Winter 2023, Spring 2023, Summer 2023, Fall 2023Fall 2022697
24.4%
—University of California, Santa Barbara grade distribution file, Winter 2022, Spring 2022, Summer 2022, Fall 2022Winter 2022240
15.0%
—University of California, Santa Barbara grade distribution file, Winter 2022, Spring 2022, Summer 2022, Fall 2022Fall 2021750
14.3%
—University of California, Santa Barbara grade distribution file, Winter 2021, Spring 2021, Summer 2021, Fall 2021Summer 202155
23.6%
—University of California, Santa Barbara grade distribution file, Winter 2021, Spring 2021, Summer 2021, Fall 2021Winter 2021191
10.5%
—University of California, Santa Barbara grade distribution file, Winter 2021, Spring 2021, Summer 2021, Fall 2021Fall 2020855
45.7%
—University of California, Santa Barbara grade distribution file, Winter 2020, Spring 2020, Summer 2020, Fall 2020Spring 2020113
52.2%
—University of California, Santa Barbara grade distribution file, Winter 2020, Spring 2020, Summer 2020, Fall 2020Winter 2020302
23.2%
—University of California, Santa Barbara grade distribution file, Winter 2020, Spring 2020, Summer 2020, Fall 2020Fall 2019804
28.9%
—University of California, Santa Barbara grade distribution file, Winter 2019, Spring 2019, Summer 2019, Fall 2019Summer 201944
18.2%
—University of California, Santa Barbara grade distribution file, Winter 2019, Spring 2019, Summer 2019, Fall 2019Spring 2019106
20.8%
—University of California, Santa Barbara grade distribution file, Winter 2019, Spring 2019, Summer 2019, Fall 2019Winter 2019375
17.3%
—University of California, Santa Barbara grade distribution file, Winter 2019, Spring 2019, Summer 2019, Fall 2019Fall 2018713
13.6%
—University of California, Santa Barbara grade distribution file, Winter 2018, Spring 2018, Summer 2018, Fall 2018Summer 201849
26.5%
—University of California, Santa Barbara grade distribution file, Winter 2018, Spring 2018, Summer 2018, Fall 2018Spring 201871
11.3%
—University of California, Santa Barbara grade distribution file, Winter 2018, Spring 2018, Summer 2018, Fall 2018Winter 2018327
26.6%
—University of California, Santa Barbara grade distribution file, Winter 2018, Spring 2018, Summer 2018, Fall 2018Fall 2017725
19.0%
—University of California, Santa Barbara grade distribution file, Winter 2017, Spring 2017, Summer 2017, Fall 2017Summer 201735
37.1%
—University of California, Santa Barbara grade distribution file, Winter 2017, Spring 2017, Summer 2017, Fall 2017Spring 2017100
31.0%
—University of California, Santa Barbara grade distribution file, Winter 2017, Spring 2017, Summer 2017, Fall 2017Winter 2017356
8.1%
—University of California, Santa Barbara grade distribution file, Winter 2017, Spring 2017, Summer 2017, Fall 2017Fall 2016821
20.2%
—University of California, Santa Barbara grade distribution file, Winter 2016, Spring 2016, Summer 2016, Fall 2016Summer 201651
17.6%
—University of California, Santa Barbara grade distribution file, Winter 2016, Spring 2016, Summer 2016, Fall 2016Spring 2016109
9.2%
—University of California, Santa Barbara grade distribution file, Winter 2016, Spring 2016, Summer 2016, Fall 2016Winter 2016330
6.4%
—University of California, Santa Barbara grade distribution file, Winter 2016, Spring 2016, Summer 2016, Fall 2016Fall 2015845
15.3%
—University of California, Santa Barbara grade distribution file, Winter 2015, Spring 2015, Summer 2015, Fall 2015Summer 201536
16.7%
—University of California, Santa Barbara grade distribution file, Winter 2015, Spring 2015, Summer 2015, Fall 2015Spring 201593
16.1%
—University of California, Santa Barbara grade distribution file, Winter 2015, Spring 2015, Summer 2015, Fall 2015Winter 2015312
24.4%
—University of California, Santa Barbara grade distribution file, Winter 2015, Spring 2015, Summer 2015, Fall 2015Fall 2014902
17.7%
—University of California, Santa Barbara grade distribution file, Winter 2014, Spring 2014, Summer 2014, Fall 2014Summer 201454
18.5%
—University of California, Santa Barbara grade distribution file, Winter 2014, Spring 2014, Summer 2014, Fall 2014Spring 201491
8.8%
—University of California, Santa Barbara grade distribution file, Winter 2014, Spring 2014, Summer 2014, Fall 2014Winter 2014308
15.9%
—University of California, Santa Barbara grade distribution file, Winter 2014, Spring 2014, Summer 2014, Fall 2014Fall 2013804
15.4%
—University of California, Santa Barbara grade distribution file, Winter 2013, Spring 2013, Summer 2013, Fall 2013Summer 201357
29.8%
—University of California, Santa Barbara grade distribution file, Winter 2013, Spring 2013, Summer 2013, Fall 2013Spring 201356
16.1%
—University of California, Santa Barbara grade distribution file, Winter 2013, Spring 2013, Summer 2013, Fall 2013Winter 2013286
28.0%
—University of California, Santa Barbara grade distribution file, Winter 2013, Spring 2013, Summer 2013, Fall 2013Fall 2012718
19.4%
—University of California, Santa Barbara grade distribution file, Winter 2012, Spring 2012, Summer 2012, Fall 2012Summer 201252
26.9%
—University of California, Santa Barbara grade distribution file, Winter 2012, Spring 2012, Summer 2012, Fall 2012Spring 201285
11.8%
—University of California, Santa Barbara grade distribution file, Winter 2012, Spring 2012, Summer 2012, Fall 2012Winter 2012246
10.6%
—University of California, Santa Barbara grade distribution file, Winter 2012, Spring 2012, Summer 2012, Fall 2012Fall 2011629
20.2%
—University of California, Santa Barbara grade distribution file, Winter 2011, Spring 2011, Summer 2011, Fall 2011Summer 201153
20.8%
—University of California, Santa Barbara grade distribution file, Winter 2011, Spring 2011, Summer 2011, Fall 2011Spring 201170
22.9%
—University of California, Santa Barbara grade distribution file, Winter 2011, Spring 2011, Summer 2011, Fall 2011By instructor, highest A rate first
ABCDFWOther
Terms taught
13 instructors. Select a name's terms to see each term separately.