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