# t table

Calculate p(x≤X)
For negative x values: p(x ≤ -X) = 1 - p(x ≤ X)

For any practical use you can use the above calculator instead of the t table. The below t table is a bit more accurate.
Examples: Row 4: DF=3, column 5: t0.99
P(x ≤ 4.5407028586 ) = 0.99

DFt0.999t0.9975t0.995t0.99t0.975t0.95t0.9t0.85t0.8t0.7
1318.3088389856127.321336468963.656741162931.820515953812.70620473626.31375151473.07768353721.96261050551.37638192050.726542528
222.327124770114.08904727569.92484320096.96455673434.30265272972.91998558041.88561808321.38620656021.06066017180.6172133998
310.21453185247.45331850525.84090930974.54070285863.18244630532.35336343481.63774435371.2497781050.97847231240.5843897274
47.17318221985.59756836714.60409487133.7469473882.77644510522.13184678631.53320627411.18956685240.94096457720.568649063
55.89342953144.77334060494.03214298363.36492999892.57058183562.01504837331.47588404881.15576734290.91954378020.5594296445
65.20762623874.31682710363.70742802133.14266840332.44691185111.94318028051.43975574731.13415693070.90570328520.5533809236
74.78528962864.02933717763.49948329742.99795156692.36462425161.89457860511.41492392771.11915912840.89602964430.5491096579
84.50079093373.83251868533.35538733132.89645944772.30600413521.85954803751.39681530971.10814544460.88888951780.5459337635
94.29680566273.68966239233.24983554162.8214379252.26215716281.83311293271.38302873841.09971619640.88340385970.5434802415
104.1437004943.58140620213.16927267262.76376945812.2281388521.81246112281.37218364111.09305807360.87905782860.5415280388
114.02470103763.49661417333.10580651552.71807918382.20098516011.79588481871.3634303181.08766638040.87552997810.5399378785
123.92963326463.42844424233.05453958942.68099799312.17881282971.78228755561.3562173341.08321142050.87260929160.5386176682
133.85198239123.3724679413.01227583872.65030883792.16036865651.7709333961.35017128881.0794687370.8701515340.5375040895
143.78739023753.32569581782.97684273442.62449406762.14478668791.76131013581.34503037451.07628024460.86805478160.5365521798
153.73283442533.28603857092.94671288352.6024802952.13144954561.75305035571.34060560791.07353139560.86624497320.535729133
163.68615479273.25199287442.92078162242.58348718532.11990529921.74588367631.33675716731.07113716330.86466700180.5350104529
173.64576738013.22244991142.89823051972.56693398372.10981557781.73960672611.33337938971.06903311060.86327901740.5343774798
183.61048488483.19657422232.87844047272.55237963022.10092204021.73406360661.33039094361.06716951550.8620486680.5338157505
193.5794001493.17372453082.86093460652.53948319062.09302405441.72913281151.3277282091.06550739860.86095055030.5333138816
203.55180834323.15340053292.84533970982.52797700272.08596344731.72471824291.3253407071.06401577120.85996443970.5328627916
213.52715366893.13520624542.8313595582.5176480162.07961384471.72074290281.32318787391.06266968810.85907403520.532455147
223.50499203113.11882420692.81875606062.50832455292.07387306791.71714437441.32123674161.06144884340.85826605170.5320849613
233.48496437493.10399696312.80733568382.49986673952.06865761041.71387152771.31946023981.06033653960.85752955370.5317472993
243.4667772983.09051354872.79693950482.49215947322.06389856161.71088207991.31783593371.05931892080.85685545810.5314380561
253.4501887273.07819946052.78743581372.48510717542.05953855281.70814076131.31634507271.05838439260.85623615770.5311537896
263.43499718163.06690911642.77871453332.47862982362.05552943861.70561791981.31497186431.05752317930.85566523330.5308915918
273.42103362123.05652010892.77068295712.4726599122.05183051651.70328844571.31370291281.05672698040.85513723070.5306489893
283.40815517843.04692877512.76326245552.4671400982.04840714181.70113093431.31252678161.05598870280.85464748560.5304238649
293.39624028843.03804674482.75638590372.46202136022.04522964211.69912702651.31143364731.05530224870.85419198590.5302143957
303.38518486683.02979822362.74999565362.45726154242.04227245631.69726088661.31041502541.05466234720.85376726150.5300190039
353.34004520212.99604661192.72380558922.43772254712.03010792831.68957245781.3062118021.05201942670.8520118890.5292106858
403.30687771412.97117129492.70445926742.42325677932.02107539031.68385101331.30307705261.05004577840.85069979580.5286056796
453.28147984822.95207912732.68958501942.41211587572.01410338891.67942739271.30064933231.04851576520.84968190470.5281358519
503.26140905582.93696408532.67779327092.40327191672.00855911211.67590502521.29871369421.04729492660.84886924450.5277604527
553.2451491052.92470103672.66821598852.39608105262.00404478331.67303396531.29713429991.04629815180.84820543270.5274536145
603.2317091262.91455257542.66028302892.39011947262.0002978221.67064886491.29582109351.04546894310.84765300640.5271981272
653.22041427112.9060152872.65360446942.38509681561.99713790841.66863597581.29471201311.0447683240.84718610120.5269820958
703.2107890612.89873377482.64790462382.38080748231.99443711181.66691447911.29376289791.04416853590.8467862850.5267970357
753.20248884082.89244999232.6429830672.37710181241.9921021541.66542537331.29294146861.04364927370.84644006750.5266367323
803.19525769032.88697205082.63869059632.3738682731.99006342131.66412457861.29222358311.04319534080.84613734790.5264965293
903.18327081412.87788418352.63156516562.36849747621.98667454071.6619610841.29102889871.04243965990.84563327290.5262629873
1003.17373949372.87065152382.62589052142.36421736621.98397151851.66023432611.29007476131.04183590090.84523042450.5260762706
1103.16597936762.86475864242.62126454352.36072634171.98176528211.65882418741.28929516631.04134243520.84490109340.5259235798
1203.15953874332.85986484882.61742114512.35782461261.97993040511.65765089941.28864623371.04093157040.84462683770.5257963906
1303.15410747212.8557359322.61417723762.35537458491.97838040541.65665941271.28809765441.04058416850.8443949080.5256888068
1-P0.0010.00250.0050.010.0250.050.10.150.20.3