Lichess to FIDE Elo Rating Conversion

Lichess is a free Chess Server – one of the best out there in fact. It comes with free engine (Stockfish) analysis, and many other nice features. It is well known that Lichess ratings are inflated compared to FIDE / USCF / most other rating systems. The following are some of the best conversion systems to convert Lichess rating to other ratings.

1) Dudeski_robinson’s Formula

FIDE Rating = 187 + Lichess Classical Rating X 0.38 + Lichess Blitz Rating X 0.48

Dudeski_robinson’s formula is pretty scientific, he actually uses linear regression out of real data to produce the above formula.

A rough estimate would be:
Fide ELO = Lichess Classical – 170
or
Fide ELO = Lichess Blitz – 80

Source: Lichess Forum

2) Chess Rating Comparison 2016 (Google Sheets)

This is also pretty scientific, with the added plus that it also compares between USCF and Chess.com, in addition to FIDE.

Chess.com Lichess.org USCF FIDE
Bullet Blitz Rapid Bullet Blitz Classical Regular Regular
860 1100 1160
900 1125 1200
930 1150 1250
960 1175 1290
1000 1200 1330 1370 1530 1590 1270 1260
1030 1225 1360 1390 1550 1620 1290 1280
1060 1250 1400 1410 1570 1640 1320 1310
1090 1275 1430 1440 1590 1670 1340 1330
1130 1300 1460 1460 1610 1690 1360 1350
1160 1325 1490 1480 1630 1720 1390 1370
1190 1350 1520 1510 1650 1740 1410 1390
1230 1375 1550 1530 1670 1770 1430 1410
1260 1400 1570 1550 1690 1790 1460 1430
1290 1425 1590 1580 1710 1810 1480 1460
1320 1450 1610 1600 1730 1830 1500 1480
1360 1475 1630 1620 1750 1860 1530 1500
1390 1500 1650 1650 1770 1880 1550 1520
1420 1525 1670 1670 1790 1900 1570 1540
1460 1550 1680 1690 1810 1920 1600 1560
1490 1575 1700 1720 1830 1940 1620 1580
1520 1600 1710 1740 1850 1960 1640 1610
1550 1625 1730 1760 1870 1980 1670 1630
1590 1650 1740 1790 1890 2000 1690 1650
1620 1675 1750 1810 1910 2010 1710 1670
1650 1700 1760 1840 1930 2030 1740 1690
1690 1725 1770 1860 1950 2050 1760 1710
1720 1750 1780 1880 1970 2070 1780 1730
1750 1775 1790 1910 1990 2080 1810 1760
1790 1800 1800 1930 2010 2100 1830 1780
1820 1825 1810 1950 2030 2110 1850 1800
1850 1850 1820 1980 2050 2130 1880 1820
1880 1875 1820 2000 2070 2150 1900 1840
1920 1900 1830 2020 2090 2160 1920 1860
1950 1925 1840 2050 2120 2180 1950 1880
1980 1950 1850 2070 2140 2190 1970 1910
2020 1975 1860 2090 2160 2210 1990 1930
2050 2000 1870 2120 2180 2220 2020 1950
2080 2025 1880 2140 2200 2230 2040 1970
2110 2050 1890 2160 2220 2240 2060 1990
2150 2075 1900 2190 2240 2250 2090 2010
2180 2100 1910 2210 2260 2270 2110 2030
2210 2125 1930 2230 2280 2280 2130 2060
2250 2150 1940 2260 2300 2290 2160 2080
2280 2175 1950 2280 2320 2300 2180 2100
2310 2200 1970 2300 2340 2300 2200 2120
2340 2225 1980 2330 2360 2310 2230 2140
2380 2250 2000 2350 2380 2320 2250 2160
2410 2275 2020 2370 2400 2330 2270 2180
2440 2300 2040 2400 2420 2340 2300 2210
2480 2325 2420 2440 2340 2320 2230
2510 2350 2440 2460 2350 2340 2250
2540 2375 2470 2480 2360 2370 2270
2580 2400 2490 2500 2360 2390 2290
2610 2425 2510 2520 2370 2410 2310
2640 2450 2540 2540 2370 2440 2330
2670 2475 2560 2560 2380 2460 2360
2710 2500 2580 2580 2380 2480 2380
2740 2525 2610 2600 2380 2500 2400
2770 2550 2630 2620 2390 2530 2420
2810 2575 2650 2640 2390 2550 2440
2840 2600 2680 2660 2390 2570 2460
2870 2625 2700 2680 2390 2600 2480
2900 2650 2720 2700 2400 2620 2510

Source: Google Docs

Discussion: Reddit

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