Vapor pressure of water: table by temperature

Vapor pressure is the pressure at which water boils at a given temperature, so the table also answers the reverse question: at what temperature water boils at a given pressure. At 100 °C the vapor pressure is 101.42 kPa, almost exactly one atmosphere.

0 to 100 °C, in steps of 1 °C

$T (^{\circ} C)$	$kPa$	$bar$	$mmHg$	$psi$
$0.01$	$0.61166$	$0.0061166$	$4.5878$	$0.088713$
$1$	$0.65709$	$0.0065709$	$4.9286$	$0.095303$
$2$	$0.70599$	$0.0070599$	$5.2953$	$0.10239$
$3$	$0.75808$	$0.0075808$	$5.6861$	$0.10995$
$4$	$0.81355$	$0.0081355$	$6.1021$	$0.11800$
$5$	$0.87257$	$0.0087257$	$6.5448$	$0.12656$
$6$	$0.93535$	$0.0093535$	$7.0157$	$0.13566$
$7$	$1.0021$	$0.010021$	$7.5163$	$0.14534$
$8$	$1.0730$	$0.010730$	$8.0481$	$0.15562$
$9$	$1.1483$	$0.011483$	$8.6128$	$0.16654$
$10$	$1.2282$	$0.012282$	$9.2121$	$0.17813$
$11$	$1.3129$	$0.013129$	$9.8479$	$0.19043$
$12$	$1.4028$	$0.014028$	$10.522$	$0.20346$
$13$	$1.4981$	$0.014981$	$11.236$	$0.21728$
$14$	$1.5989$	$0.015989$	$11.993$	$0.23191$
$15$	$1.7057$	$0.017057$	$12.794$	$0.24740$
$16$	$1.8188$	$0.018188$	$13.642$	$0.26379$
$17$	$1.9383$	$0.019383$	$14.538$	$0.28113$
$18$	$2.0647$	$0.020647$	$15.486$	$0.29945$
$19$	$2.1982$	$0.021982$	$16.488$	$0.31882$
$20$	$2.3392$	$0.023392$	$17.546$	$0.33927$
$21$	$2.4881$	$0.024881$	$18.662$	$0.36087$
$22$	$2.6452$	$0.026452$	$19.841$	$0.38366$
$23$	$2.8109$	$0.028109$	$21.084$	$0.40769$
$24$	$2.9856$	$0.029856$	$22.394$	$0.43303$
$25$	$3.1697$	$0.031697$	$23.775$	$0.45973$
$26$	$3.3637$	$0.033637$	$25.230$	$0.48786$
$27$	$3.5679$	$0.035679$	$26.761$	$0.51748$
$28$	$3.7828$	$0.037828$	$28.373$	$0.54865$
$29$	$4.0089$	$0.040089$	$30.069$	$0.58144$
$30$	$4.2467$	$0.042467$	$31.853$	$0.61593$
$31$	$4.4966$	$0.044966$	$33.727$	$0.65218$
$32$	$4.7592$	$0.047592$	$35.697$	$0.69027$
$33$	$5.0351$	$0.050351$	$37.766$	$0.73028$
$34$	$5.3247$	$0.053247$	$39.938$	$0.77228$
$35$	$5.6286$	$0.056286$	$42.218$	$0.81636$
$36$	$5.9475$	$0.059475$	$44.610$	$0.86261$
$37$	$6.2818$	$0.062818$	$47.118$	$0.91111$
$38$	$6.6324$	$0.066324$	$49.747$	$0.96194$
$39$	$6.9997$	$0.069997$	$52.502$	$1.0152$
$40$	$7.3844$	$0.073844$	$55.388$	$1.0710$
$41$	$7.7873$	$0.077873$	$58.410$	$1.1295$
$42$	$8.2090$	$0.082090$	$61.573$	$1.1906$
$43$	$8.6503$	$0.086503$	$64.882$	$1.2546$
$44$	$9.1118$	$0.091118$	$68.344$	$1.3216$
$45$	$9.5944$	$0.095944$	$71.964$	$1.3915$
$46$	$10.099$	$0.10099$	$75.747$	$1.4647$
$47$	$10.626$	$0.10626$	$79.701$	$1.5412$
$48$	$11.176$	$0.11176$	$83.830$	$1.6210$
$49$	$11.751$	$0.11751$	$88.142$	$1.7044$
$50$	$12.351$	$0.12351$	$92.642$	$1.7914$
$51$	$12.977$	$0.12977$	$97.338$	$1.8822$
$52$	$13.631$	$0.13631$	$102.24$	$1.9769$
$53$	$14.312$	$0.14312$	$107.35$	$2.0757$
$54$	$15.022$	$0.15022$	$112.67$	$2.1787$
$55$	$15.761$	$0.15761$	$118.22$	$2.2860$
$56$	$16.532$	$0.16532$	$124.00$	$2.3978$
$57$	$17.335$	$0.17335$	$130.02$	$2.5142$
$58$	$18.171$	$0.18171$	$136.29$	$2.6354$
$59$	$19.041$	$0.19041$	$142.82$	$2.7616$
$60$	$19.946$	$0.19946$	$149.61$	$2.8929$
$61$	$20.887$	$0.20887$	$156.67$	$3.0295$
$62$	$21.866$	$0.21866$	$164.01$	$3.1715$
$63$	$22.884$	$0.22884$	$171.65$	$3.3191$
$64$	$23.942$	$0.23942$	$179.58$	$3.4725$
$65$	$25.041$	$0.25041$	$187.82$	$3.6319$
$66$	$26.183$	$0.26183$	$196.39$	$3.7975$
$67$	$27.368$	$0.27368$	$205.28$	$3.9694$
$68$	$28.599$	$0.28599$	$214.51$	$4.1479$
$69$	$29.876$	$0.29876$	$224.09$	$4.3331$
$70$	$31.201$	$0.31201$	$234.02$	$4.5253$
$71$	$32.575$	$0.32575$	$244.33$	$4.7246$
$72$	$34.000$	$0.34000$	$255.02$	$4.9313$
$73$	$35.478$	$0.35478$	$266.10$	$5.1456$
$74$	$37.009$	$0.37009$	$277.59$	$5.3677$
$75$	$38.595$	$0.38595$	$289.49$	$5.5978$
$76$	$40.239$	$0.40239$	$301.82$	$5.8362$
$77$	$41.941$	$0.41941$	$314.58$	$6.0830$
$78$	$43.703$	$0.43703$	$327.80$	$6.3386$
$79$	$45.527$	$0.45527$	$341.48$	$6.6032$
$80$	$47.415$	$0.47415$	$355.64$	$6.8769$
$81$	$49.368$	$0.49368$	$370.29$	$7.1602$
$82$	$51.387$	$0.51387$	$385.44$	$7.4531$
$83$	$53.476$	$0.53476$	$401.10$	$7.7561$
$84$	$55.636$	$0.55636$	$417.30$	$8.0693$
$85$	$57.867$	$0.57867$	$434.04$	$8.3930$
$86$	$60.174$	$0.60174$	$451.34$	$8.7275$
$87$	$62.556$	$0.62556$	$469.21$	$9.0730$
$88$	$65.017$	$0.65017$	$487.67$	$9.4300$
$89$	$67.559$	$0.67559$	$506.73$	$9.7986$
$90$	$70.182$	$0.70182$	$526.41$	$10.179$
$91$	$72.890$	$0.72890$	$546.72$	$10.572$
$92$	$75.685$	$0.75685$	$567.68$	$10.977$
$93$	$78.568$	$0.78568$	$589.31$	$11.395$
$94$	$81.542$	$0.81542$	$611.62$	$11.827$
$95$	$84.609$	$0.84609$	$634.62$	$12.271$
$96$	$87.771$	$0.87771$	$658.34$	$12.730$
$97$	$91.031$	$0.91031$	$682.79$	$13.203$
$98$	$94.390$	$0.94390$	$707.98$	$13.690$
$99$	$97.852$	$0.97852$	$733.95$	$14.192$
$100$	$101.42$	$1.0142$	$760.70$	$14.709$

110 to 370 °C

$T (^{\circ} C)$	$kPa$	$bar$	$mmHg$	$psi$
$110$	$143.38$	$1.4338$	$1075.4$	$20.795$
$120$	$198.67$	$1.9867$	$1490.1$	$28.814$
$130$	$270.26$	$2.7026$	$2027.1$	$39.198$
$140$	$361.50$	$3.6150$	$2711.5$	$52.431$
$150$	$476.10$	$4.7610$	$3571.1$	$69.053$
$160$	$618.14$	$6.1814$	$4636.4$	$89.654$
$170$	$792.05$	$7.9205$	$5940.9$	$114.88$
$180$	$1002.6$	$10.026$	$7520.4$	$145.42$
$190$	$1255.0$	$12.550$	$9413.4$	$182.02$
$200$	$1554.7$	$15.547$	$11661$	$225.49$
$210$	$1907.4$	$19.074$	$14307$	$276.64$
$220$	$2319.3$	$23.193$	$17396$	$336.38$
$230$	$2796.8$	$27.968$	$20978$	$405.64$
$240$	$3346.7$	$33.467$	$25102$	$485.39$
$250$	$3975.9$	$39.759$	$29822$	$576.66$
$260$	$4692.1$	$46.921$	$35193$	$680.53$
$270$	$5502.8$	$55.028$	$41275$	$798.12$
$280$	$6416.5$	$64.165$	$48127$	$930.63$
$290$	$7441.6$	$74.416$	$55817$	$1079.3$
$300$	$8587.7$	$85.877$	$64413$	$1245.5$
$310$	$9864.7$	$98.647$	$73992$	$1430.8$
$320$	$11284$	$112.84$	$84636$	$1636.6$
$330$	$12858$	$128.58$	$96439$	$1864.8$
$340$	$14600$	$146.00$	$1.0951 e + 5$	$2117.6$
$350$	$16529$	$165.29$	$1.2398 e + 5$	$2397.4$
$360$	$18666$	$186.66$	$1.4001 e + 5$	$2707.3$
$370$	$21043$	$210.43$	$1.5784 e + 5$	$3052.1$

Notes

Every value is computed from the IAPWS-IF97 saturation equation and checked against the verification values the standard publishes. Unit conversions use exact definitions.

Water boils at 100 °C only at 101.42 kPa. At altitude, where pressure is lower, it boils at a lower temperature; in a pressure cooker, at a higher one.

The table stops at 370 °C. The critical point of water is 373.95 °C and 22.064 MPa, above which liquid and vapour are no longer distinct.