I was messing around with Simbreif and came across something that proved a little confusing to me. I initially thought the solution was simple, but realized it was much more complicated than I thought initially.

So, from Simbreif’s user guide, it says that it calculates the total number of passengers as 230 lbs, 175 per person and 55 for their bags. However, from what I know, infinite flight only calculates for the person and not the bags.

This is what I had been doing previously: input the correct IF zero fuel weights, MTOW, and MLW weights onto SimBreif to get the most accurate fuel readout. But, autofill will give you 0.0 cargo on SimBreif, and I knew that SimBreif already calculated baggage weight with passenger count. However, now that I realize that IF doesn’t calculate it that way, how should I go about this?

So, the questions:

**Question 1**: Since IF does not calculate “passengers” including their bags, in order to get the most accurate read out, will I actually have to go back and multiply 55lbs x (number of PAX) in order to get the accurate weight from SimBreif.

**Question 2**: Since SimBreif calculates 175 per person, is this actually an accurate representation of what IF calculates per passenger? If not, what is the weight per passenger on IF?

**Question 3**: SimBreif’s cargo on auto actually remains set to “0.0.” Is this realistic for real world travel? What is a realistic input value for additional cargo besides passenger bags? Again, note that passenger bags do not count as cargo in SimBreif, but apparently do count as cargo in IF.

*Sidenote* : Yes, I do realize that all of this is not necessary, and that each passenger will not actually weigh 175, and each bag 55. What matters is the fuel, and yes I understand I can estimate.

For realism’s sake, to get to the closest real world simulations, I was wondering about these conversions, because apparently, its a lot more complicated than just plug and chug values.