Haha those calculators are just for fun yaar, dont take them seriously. Mine said 3 kids and i have decided 1 is more than enough for my sanity. Its all just entertainment, real life is your own choice.
Omg those are so random, me and my friends did one for fun during a sleepover and got totally different answers. Its just a game na. Have as many or as few as you and your family want, no app decides that.
Those online calculators are pure timepass, no science behind them at all. How many kids you have depends on you, your health and your planning. Dont base any decision on those, talk to your partner and doctor for real planning.
Those calculators are just play, i wouldnt read into them. I feel these things are in gods hands and in our own choices. Stay positive and plan your family the way feels right to you and your partner.