Kaplan Meier curve

Hello,
I want to find out if there is a way of getting an exact y-value based on a x-value for a kaplan-meier curve. I am able to draw the plot, but can't figure out how to get exact values (for example t=1000).
Thanks for your help

Hi!

To help us help you, could you please prepare a reproducible example (reprex) illustrating your issue? Please have a look at this guide, to see how to create one:

Hello,
my data set is huge, but here's part of it to help illustrate what I would like to do. I would like to find futime (t) = 2000 for example.

age sex weight height bmi futime status
57 0 60.0 163 22.69094 6261 0
67 0 70.4 168 24.88403 624 0
53 1 105.8 186 30.45354 1783 0
56 1 109.3 170 37.83010 3143 0
68 1 NA NA NA 1836 1
39 0 63.9 155 26.61559 1581 0

Please read the guide again. Look for mention of dput
Also the code that processes your data into the chart should be provided