AVR Baud Rate Tables



32.768 Khz
BaudUBRR% of error
30062.5
600212.1
1200117.2
2400017.2
48000134.4
96000368.8
144000603.1
192000837.5
2880001306.2
3840001775.0
5760002712.5
7680003650.0
11520005525.0
1 Mhz
BaudUBRR% of error
3002070.2
6001030.2
1200510.2
2400250.2
4800120.2
960067.5
1440037.8
1920027.8
2880017.8
38400122.9
5760007.8
76800022.9
115200084.3
1.2288 Mhz
BaudUBRR% of error
3002550.0
6001270.0
1200630.0
2400310.0
4800150.0
960070.0
1440046.2
1920030.0
28800212.5
3840010.0
57600025.0
7680000.0
115200050.0
1.8432 Mhz
BaudUBRR% of error
3003830.0
6001910.0
1200950.0
2400470.0
4800230.0
9600110.0
1440070.0
1920050.0
2880030.0
3840020.0
5760010.0
76800133.3
11520000.0
2 Mhz
BaudUBRR% of error
3004160.1
6002070.2
12001030.2
2400510.2
4800250.2
9600120.2
1440083.7
1920067.5
2880037.8
3840027.8
5760017.8
76800122.9
11520007.8
2.4576 Mhz
BaudUBRR% of error
3005110.0
6002550.0
12001270.0
2400630.0
4800310.0
9600150.0
14400103.1
1920070.0
2880046.2
3840030.0
57600212.5
7680010.0
115200025.0
3.2768 Mhz
BaudUBRR% of error
3006820.0
6003400.1
12001700.2
2400840.4
4800420.8
9600201.6
14400131.6
19200103.1
2880061.6
3840046.2
57600312.5
76800212.5
115200112.5
3.579545 Mhz
BaudUBRR% of error
3007450.0
6003720.0
12001850.2
2400920.2
4800460.8
9600221.3
14400153.0
19200113.0
2880073.0
3840053.0
5760033.0
7680023.0
11520013.0
3.6864 Mhz
BaudUBRR% of error
3007670.0
6003830.0
12001910.0
2400950.0
4800470.0
9600230.0
14400150.0
19200110.0
2880070.0
3840050.0
5760030.0
7680020.0
11520010.0
4 Mhz
BaudUBRR% of error
3008320.0
6004160.1
12002070.2
24001030.2
4800510.2
9600250.2
14400162.1
19200120.2
2880083.7
3840067.5
5760037.8
7680027.8
11520017.8
4.194304 Mhz
BaudUBRR% of error
3008730.0
6004360.0
12002170.2
24001080.2
4800540.7
9600261.1
14400171.1
19200132.5
2880081.1
3840062.5
5760049.9
76800212.1
115200112.1
4.433619 Mhz
BaudUBRR% of error
3009230.0
6004610.0
12002300.0
24001140.4
4800570.5
9600280.5
14400181.3
19200133.0
2880093.9
3840063.0
5760043.9
76800310.9
115200116.9
4.608 Mhz
BaudUBRR% of error
3009590.0
6004790.0
12002390.0
24001190.0
4800590.0
9600290.0
14400190.0
19200140.0
2880090.0
3840076.7
5760040.0
7680036.7
115200220.0
4.9152 Mhz
BaudUBRR% of error
30010230.0
6005110.0
12002550.0
24001270.0
4800630.0
9600310.0
14400201.6
19200150.0
28800103.1
3840070.0
5760046.2
7680030.0
115200212.5
5 Mhz
BaudUBRR% of error
30010410.0
6005200.0
12002590.2
24001290.2
4800640.2
9600321.4
14400211.4
19200151.7
28800101.4
3840071.7
5760047.8
7680031.7
115200210.6
5.0688 Mhz
BaudUBRR% of error
30010550.0
6005270.0
12002630.0
24001310.0
4800650.0
9600320.0
14400210.0
19200163.0
28800100.0
3840073.0
5760059.1
7680033.0
11520029.1
6 Mhz
BaudUBRR% of error
30012490.0
6006240.0
12003120.2
24001550.2
4800770.2
9600380.2
14400250.2
19200192.4
28800120.2
3840092.4
5760067.5
7680042.4
11520027.8
6.144 Mhz
BaudUBRR% of error
30012790.0
6006390.0
12003190.0
24001590.0
4800790.0
9600390.0
14400261.2
19200190.0
28800122.5
3840090.0
5760065.0
7680040.0
115200210.0
7.3728 Mhz
BaudUBRR% of error
30015350.0
6007670.0
12003830.0
24001910.0
4800950.0
9600470.0
14400310.0
19200230.0
28800150.0
38400110.0
5760070.0
7680050.0
11520030.0
8 Mhz
BaudUBRR% of error
30016660.0
6008320.0
12004160.1
24002070.2
48001030.2
9600510.2
14400340.8
19200250.2
28800162.1
38400120.2
5760083.7
7680067.5
11520037.8
9 Mhz
BaudUBRR% of error
30018740.0
6009370.1
12004680.1
24002330.2
48001160.2
9600580.7
14400380.2
19200281.0
28800192.4
38400142.4
5760092.4
7680064.4
11520042.4
9.216 Mhz
BaudUBRR% of error
30019190.0
6009590.0
12004790.0
24002390.0
48001190.0
9600590.0
14400390.0
19200290.0
28800190.0
38400140.0
5760090.0
7680076.7
11520040.0
10 Mhz
BaudUBRR% of error
30020820.0
60010410.0
12005200.0
24002590.2
48001290.2
9600640.2
14400420.9
19200321.4
28800211.4
38400151.7
57600101.4
7680071.7
11520047.8
11.0592 Mhz
BaudUBRR% of error
30023030.0
60011510.0
12005750.0
24002870.0
48001430.0
9600710.0
14400470.0
19200350.0
28800230.0
38400170.0
57600110.0
7680080.0
11520050.0
12 Mhz
BaudUBRR% of error
30024990.0
60012490.0
12006240.0
24003120.2
48001550.2
9600770.2
14400510.2
19200380.2
28800250.2
38400192.4
57600120.2
7680092.4
11520067.5
12.288 Mhz
BaudUBRR% of error
30025590.0
60012790.0
12006390.0
24003190.0
48001590.0
9600790.0
14400520.6
19200390.0
28800261.2
38400190.0
57600122.5
7680090.0
11520065.0
14.318181 Mhz
BaudUBRR% of error
30029820.0
60014900.0
12007450.0
24003720.0
48001850.2
9600920.2
14400610.2
19200460.8
28800300.2
38400221.3
57600153.0
76800113.0
11520073.0
14.746 Mhz
BaudUBRR% of error
30030710.0
60015350.0
12007670.0
24003830.0
48001910.0
9600950.0
14400630.0
19200470.0
28800310.0
38400230.0
57600150.0
76800110.0
11520070.0
16 Mhz
BaudUBRR% of error
30033320.0
60016660.0
12008320.0
24004160.1
48002070.2
96001030.2
14400680.6
19200510.2
28800340.8
38400250.2
57600162.1
76800120.2
11520083.7
18 Mhz
BaudUBRR% of error
30037490.0
60018740.0
12009370.1
24004680.1
48002330.2
96001160.2
14400770.2
19200580.7
28800380.2
38400281.0
57600192.4
76800142.4
11520092.4
18.432 Mhz
BaudUBRR% of error
30038390.0
60019190.0
12009590.0
24004790.0
48002390.0
96001190.0
14400790.0
19200590.0
28800390.0
38400290.0
57600190.0
76800140.0
11520090.0
20 Mhz
BaudUBRR% of error
30041660.0
60020820.0
120010410.0
24005200.0
48002590.2
96001290.2
14400860.2
19200640.2
28800420.9
38400321.4
57600211.4
76800151.7
115200101.4
30 Mhz
BaudUBRR% of error
30062490.0
60031240.0
120015620.0
24007800.0
48003900.1
96001940.2
144001290.2
19200970.4
28800640.2
38400480.4
57600321.4
76800231.7
115200151.7
32.768 Mhz
BaudUBRR% of error
30068260.0
60034120.0
120017060.0
24008520.0
48004260.1
96002120.2
144001410.2
192001060.3
28800700.2
38400520.6
57600351.2
76800261.2
115200171.2
40 Mhz
BaudUBRR% of error
30083320.0
60041660.0
120020820.0
240010410.0
48005200.0
96002590.2
144001730.2
192001290.2
28800860.2
38400640.2
57600420.9
76800321.4
115200211.4
Legend:
UBRR out of range
UBRR and clock speed are a perfect match
UBRR and clock speed are less than 1% off
UBRR and clock speed are between 1% and 2% off
UBRR and clock speed are between 2% and 3% off
UBRR and clock speed are between 3% and 10% off
UBRR and clock speed is over 10% off