Tools
Elo Calculator
What one result is worth, and how long a rating goal actually takes at your current score rate.
Single game
Result
Chess.com uses roughly 32 below 2100 and 24 above. FIDE uses 40 for new players, 20 in the middle, 10 over 2400.
Expected
0.429
Change
+11.4
New rating
1211
Time to your goal
Assuming you keep playing opponents around your own level.
Per game
+1.00
Games needed
300
60 weeks at 5 games a day
Score rate needed for +1 point per game
At K=20 you need to score 55.0% against equal opposition. That is about 11 points from every 20 games.