Rf/(Rf+Ri) with 5% tolerances
| | Rf |
| | 10 | 11 | 12 | 13 | 15 | 16 | 18 | 20 | 22 | 24 | 27 | 30 | 33 | 36 | 39 | 43 | 47 | 51 | 56 | 62 | 68 | 75 | 82 | 91 |
| Ri | 10 | 0.5000 | 0.5238 | 0.5455 | 0.5652 | 0.6000 | 0.6154 | 0.6429 | 0.6667 | 0.6875 | 0.7059 | 0.7297 | 0.7500 | 0.7674 | 0.7826 | 0.7959 | 0.8113 | 0.8246 | 0.8361 | 0.8485 | 0.8611 | 0.8718 | 0.8824 | 0.8913 | 0.9010 |
| 11 | 0.4762 | 0.5000 | 0.5217 | 0.5417 | 0.5769 | 0.5926 | 0.6207 | 0.6452 | 0.6667 | 0.6857 | 0.7105 | 0.7317 | 0.7500 | 0.7660 | 0.7800 | 0.7963 | 0.8103 | 0.8226 | 0.8358 | 0.8493 | 0.8608 | 0.8721 | 0.8817 | 0.8922 |
| 12 | 0.4545 | 0.4783 | 0.5000 | 0.5200 | 0.5556 | 0.5714 | 0.6000 | 0.6250 | 0.6471 | 0.6667 | 0.6923 | 0.7143 | 0.7333 | 0.7500 | 0.7647 | 0.7818 | 0.7966 | 0.8095 | 0.8235 | 0.8378 | 0.8500 | 0.8621 | 0.8723 | 0.8835 |
| 13 | 0.4348 | 0.4583 | 0.4800 | 0.5000 | 0.5357 | 0.5517 | 0.5806 | 0.6061 | 0.6286 | 0.6486 | 0.6750 | 0.6977 | 0.7174 | 0.7347 | 0.7500 | 0.7679 | 0.7833 | 0.7969 | 0.8116 | 0.8267 | 0.8395 | 0.8523 | 0.8632 | 0.8750 |
| 15 | 0.4000 | 0.4231 | 0.4444 | 0.4643 | 0.5000 | 0.5161 | 0.5455 | 0.5714 | 0.5946 | 0.6154 | 0.6429 | 0.6667 | 0.6875 | 0.7059 | 0.7222 | 0.7414 | 0.7581 | 0.7727 | 0.7887 | 0.8052 | 0.8193 | 0.8333 | 0.8454 | 0.8585 |
| 16 | 0.3846 | 0.4074 | 0.4286 | 0.4483 | 0.4839 | 0.5000 | 0.5294 | 0.5556 | 0.5789 | 0.6000 | 0.6279 | 0.6522 | 0.6735 | 0.6923 | 0.7091 | 0.7288 | 0.7460 | 0.7612 | 0.7778 | 0.7949 | 0.8095 | 0.8242 | 0.8367 | 0.8505 |
| 18 | 0.3571 | 0.3793 | 0.4000 | 0.4194 | 0.4545 | 0.4706 | 0.5000 | 0.5263 | 0.5500 | 0.5714 | 0.6000 | 0.6250 | 0.6471 | 0.6667 | 0.6842 | 0.7049 | 0.7231 | 0.7391 | 0.7568 | 0.7750 | 0.7907 | 0.8065 | 0.8200 | 0.8349 |
| 20 | 0.3333 | 0.3548 | 0.3750 | 0.3939 | 0.4286 | 0.4444 | 0.4737 | 0.5000 | 0.5238 | 0.5455 | 0.5745 | 0.6000 | 0.6226 | 0.6429 | 0.6610 | 0.6825 | 0.7015 | 0.7183 | 0.7368 | 0.7561 | 0.7727 | 0.7895 | 0.8039 | 0.8198 |
| 22 | 0.3125 | 0.3333 | 0.3529 | 0.3714 | 0.4054 | 0.4211 | 0.4500 | 0.4762 | 0.5000 | 0.5217 | 0.5510 | 0.5769 | 0.6000 | 0.6207 | 0.6393 | 0.6615 | 0.6812 | 0.6986 | 0.7179 | 0.7381 | 0.7556 | 0.7732 | 0.7885 | 0.8053 |
| 24 | 0.2941 | 0.3143 | 0.3333 | 0.3514 | 0.3846 | 0.4000 | 0.4286 | 0.4545 | 0.4783 | 0.5000 | 0.5294 | 0.5556 | 0.5789 | 0.6000 | 0.6190 | 0.6418 | 0.6620 | 0.6800 | 0.7000 | 0.7209 | 0.7391 | 0.7576 | 0.7736 | 0.7913 |
| 27 | 0.2703 | 0.2895 | 0.3077 | 0.3250 | 0.3571 | 0.3721 | 0.4000 | 0.4255 | 0.4490 | 0.4706 | 0.5000 | 0.5263 | 0.5500 | 0.5714 | 0.5909 | 0.6143 | 0.6351 | 0.6538 | 0.6747 | 0.6966 | 0.7158 | 0.7353 | 0.7523 | 0.7712 |
| 30 | 0.2500 | 0.2683 | 0.2857 | 0.3023 | 0.3333 | 0.3478 | 0.3750 | 0.4000 | 0.4231 | 0.4444 | 0.4737 | 0.5000 | 0.5238 | 0.5455 | 0.5652 | 0.5890 | 0.6104 | 0.6296 | 0.6512 | 0.6739 | 0.6939 | 0.7143 | 0.7321 | 0.7521 |
| 33 | 0.2326 | 0.2500 | 0.2667 | 0.2826 | 0.3125 | 0.3265 | 0.3529 | 0.3774 | 0.4000 | 0.4211 | 0.4500 | 0.4762 | 0.5000 | 0.5217 | 0.5417 | 0.5658 | 0.5875 | 0.6071 | 0.6292 | 0.6526 | 0.6733 | 0.6944 | 0.7130 | 0.7339 |
| 36 | 0.2174 | 0.2340 | 0.2500 | 0.2653 | 0.2941 | 0.3077 | 0.3333 | 0.3571 | 0.3793 | 0.4000 | 0.4286 | 0.4545 | 0.4783 | 0.5000 | 0.5200 | 0.5443 | 0.5663 | 0.5862 | 0.6087 | 0.6327 | 0.6538 | 0.6757 | 0.6949 | 0.7165 |
| 39 | 0.2041 | 0.2200 | 0.2353 | 0.2500 | 0.2778 | 0.2909 | 0.3158 | 0.3390 | 0.3607 | 0.3810 | 0.4091 | 0.4348 | 0.4583 | 0.4800 | 0.5000 | 0.5244 | 0.5465 | 0.5667 | 0.5895 | 0.6139 | 0.6355 | 0.6579 | 0.6777 | 0.7000 |
| 43 | 0.1887 | 0.2037 | 0.2182 | 0.2321 | 0.2586 | 0.2712 | 0.2951 | 0.3175 | 0.3385 | 0.3582 | 0.3857 | 0.4110 | 0.4342 | 0.4557 | 0.4756 | 0.5000 | 0.5222 | 0.5426 | 0.5657 | 0.5905 | 0.6126 | 0.6356 | 0.6560 | 0.6791 |
| 47 | 0.1754 | 0.1897 | 0.2034 | 0.2167 | 0.2419 | 0.2540 | 0.2769 | 0.2985 | 0.3188 | 0.3380 | 0.3649 | 0.3896 | 0.4125 | 0.4337 | 0.4535 | 0.4778 | 0.5000 | 0.5204 | 0.5437 | 0.5688 | 0.5913 | 0.6148 | 0.6357 | 0.6594 |
| 51 | 0.1639 | 0.1774 | 0.1905 | 0.2031 | 0.2273 | 0.2388 | 0.2609 | 0.2817 | 0.3014 | 0.3200 | 0.3462 | 0.3704 | 0.3929 | 0.4138 | 0.4333 | 0.4574 | 0.4796 | 0.5000 | 0.5234 | 0.5487 | 0.5714 | 0.5952 | 0.6165 | 0.6408 |
| 56 | 0.1515 | 0.1642 | 0.1765 | 0.1884 | 0.2113 | 0.2222 | 0.2432 | 0.2632 | 0.2821 | 0.3000 | 0.3253 | 0.3488 | 0.3708 | 0.3913 | 0.4105 | 0.4343 | 0.4563 | 0.4766 | 0.5000 | 0.5254 | 0.5484 | 0.5725 | 0.5942 | 0.6190 |
| 62 | 0.1389 | 0.1507 | 0.1622 | 0.1733 | 0.1948 | 0.2051 | 0.2250 | 0.2439 | 0.2619 | 0.2791 | 0.3034 | 0.3261 | 0.3474 | 0.3673 | 0.3861 | 0.4095 | 0.4312 | 0.4513 | 0.4746 | 0.5000 | 0.5231 | 0.5474 | 0.5694 | 0.5948 |
| 68 | 0.1282 | 0.1392 | 0.1500 | 0.1605 | 0.1807 | 0.1905 | 0.2093 | 0.2273 | 0.2444 | 0.2609 | 0.2842 | 0.3061 | 0.3267 | 0.3462 | 0.3645 | 0.3874 | 0.4087 | 0.4286 | 0.4516 | 0.4769 | 0.5000 | 0.5245 | 0.5467 | 0.5723 |
| 75 | 0.1176 | 0.1279 | 0.1379 | 0.1477 | 0.1667 | 0.1758 | 0.1935 | 0.2105 | 0.2268 | 0.2424 | 0.2647 | 0.2857 | 0.3056 | 0.3243 | 0.3421 | 0.3644 | 0.3852 | 0.4048 | 0.4275 | 0.4526 | 0.4755 | 0.5000 | 0.5223 | 0.5482 |
| 82 | 0.1087 | 0.1183 | 0.1277 | 0.1368 | 0.1546 | 0.1633 | 0.1800 | 0.1961 | 0.2115 | 0.2264 | 0.2477 | 0.2679 | 0.2870 | 0.3051 | 0.3223 | 0.3440 | 0.3643 | 0.3835 | 0.4058 | 0.4306 | 0.4533 | 0.4777 | 0.5000 | 0.5260 |
| 91 | 0.0990 | 0.1078 | 0.1165 | 0.1250 | 0.1415 | 0.1495 | 0.1651 | 0.1802 | 0.1947 | 0.2087 | 0.2288 | 0.2479 | 0.2661 | 0.2835 | 0.3000 | 0.3209 | 0.3406 | 0.3592 | 0.3810 | 0.4052 | 0.4277 | 0.4518 | 0.4740 | 0.5000 |
© 2006 Mark Rushakoff