The Shared cM Project 4.0 tool v4
Read more about the tool and this update
How to read this chart
- RelationshipAverageRange
(low to high;
99th percentile) 
-
Great-Great-Great-Grandparent
-
GGGG Aunt / Uncle
-
Great-Great-Grandparent
-
GGG Aunt / Uncle
-
Half GG-Aunt / Uncle208103 – 284
-
Great-Grandparent887485 – 1486
-
Great-Great-Aunt / Uncle420186 – 713
-
1C3R11725 – 238
-
2C3R510 – 154
-
Other Relationships
-
Half 1C2R12516 – 269
-
Half Great-Aunt / Uncle431184 – 668
-
Grandparent1754984 – 2462
-
Great-Aunt / Uncle850330 – 1467
-
1C2R22133 – 471
-
2C2R710 – 244
-
3C2R360 – 166
-
6C180 – 71
-
Half 2C1R660 – 190
-
Half 1C1R22462 – 469
-
Half Aunt / Uncle871492 – 1315
-
Parent34852376 – 3720
-
Aunt / Uncle17411201 – 2282
-
1C1R433102 – 980
-
2C1R12214 – 353
-
3C1R480 – 192
-
4C1R280 – 126
-
6C1R150 – 56
-
Half 3C480 – 168
-
Half 2C12010 – 325
-
Half 1C449156 – 979
-
Half Sibling17591160 – 2436
-
Sibling26131613 – 3488
-
SELF
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1C866396 – 1397
-
2C22941 – 592
-
3C730 – 234
-
4C350 – 139
-
5C250 – 117
-
6C2R130 – 45
-
Half 3C1R370 – 139
-
Half 2C1R660 – 190
-
Half 1C1R22462 – 469
-
Half Niece / Nephew871492 – 1315
-
Niece / Nephew17401201 – 2282
-
Child34872376 – 3720
-
1C1R433102 – 980
-
2C1R12214 – 353
-
3C1R480 – 192
-
4C1R280 – 126
-
5C1R210 – 80
-
7C140 – 57
-
Half 3C2R270 – 78
-
Half 2C2R480 – 144
-
Half 1C2R12516 – 269
-
Half Great-Niece / Nephew431184 – 668
-
Great-Niece / Nephew850330 – 1467
-
Grandchild1754984 – 2462
-
1C2R22133 – 471
-
2C2R710 – 244
-
3C2R360 – 166
-
4C2R220 – 93
-
5C2R180 – 65
-
7C1R120 – 50
-
Half 3C3R
-
Half 2C3R
-
Half 1C3R600 – 120
-
Half GG-Niece / Nephew208103 – 284
-
Great-Great-Niece / Nephew420186 – 713
-
Great-Grandchild887485 – 1486
-
1C3R11725 – 238
-
2C3R510 – 154
-
3C3R270 – 98
-
4C3R190 – 60
-
5C3R130 – 30
-
8C110 – 42