There are many but they are all estimates. The best way to find out your maintenance calorie level is to have set an intake and measure up a week or two after (i.e. have you gained or lost any bodyfat or LBM)
This is the Katch McArdle formula. I prefer it since it uses LBM rather than weight to calculate your BMR
You are 167lbs@9%bf
So 167lbs/2.2=76kg
76 x (100%-9%)=69kg
Formula for BMR:370+(21.6x69)=1860kcal
Activity factor (again, only estimates):
Fairly sedentary- 1.2x
Fairly active - (2-3 times a week workout): x1.5
Quite active - (5-7 times a week workout): x1.7
Extemely active - (Physically active all day!): x1.9
So, going by your routine, I'd say x1.7
1860x1.7=3162kcal so roughly 3200kcal to maintain your bodyweight
The problem is that your body adapts to intakes. If you've been at 1500kcal for a month and you have been advised you should be taking 2500kcal, a sudden jump would probably cause quite a bit of fat gain as your body has been starved for a while and feels the need to
replenish some stores.
Hence why they say the cut process should be as slow as possible to maintain the most muscle and to increase the chances of achieving lower bodyfat.