How much does 90mins football/soccer burn?

its not suppose to be spot on, its just suppose to give you an estimate so you can plan your eating better

but yea, that sounds about right

No way of knowing. Wear a HRM next time. Easily 1000+ if you ran around for a full 90 mins.

Like others said that the exact burn will only be known via HRM

However, since soccer is constantly running (depending on what you doing ofcourse) I would say enter it as 60 minutes of circuit training (lets be serious, you didn't ran entire 90 minutes) and that should be as accurate as possible without a HRM

That's really going to depend a ton on your position and how intense the game is. 90mins in goal? Probably not. 90mins as center forward in an offense-heavy game? Maybe. It also depends on your weight, fitness level, and HR. The only real way to determine what it is for YOU will be to buy a HR monitor and wear it during your game/practice. Everything else is just going to be a massive guess.
For example, as a 6'0" tall, 160lb female, I burn around 1200-1400cals running a 1/2 marathon in 2 hrs. That's steady-state cardio with a fairly consistent HR. I can also burn about 630cals/hr doing CrossFit, included all the down time.
Your soccer games will likely vary every time in what you burn.

I play and have been tracking it on here. I use the Soccer, casual, general category. There is a competitive category as well. I never include the time I sit on the sidelines. I try to estimate the time I spend actually playing. If we only have 2 subs and or I played an entire half without a sub plus some of the other half I go from there. Yesterday I logged 78 minutes and that gave me 721 calories burned. I figure that was close enough. Don't want to over estimate calories burned by too much.