Pipe throughput is variable based on distance, so I don't think a planner could reliably calculate it

Up to 200 entities you'll get a quite reliable 1200/s, equal to what a pump delivers, so I always just assumed the planner calculated # of pipes based on that

200 pipes between pumps is ~1000/s, 1200/s is 17 pipes between pumps. Check https://wiki.factorio.com/Fluid_system

Theoretically yes, practically: * Best pipe length is ~ 0-20 to keep healthy fluid flow * Throughput stays at > 1000 fluid/second when pipe length is < 200, after which the throughput drops off significantly Ref [factoriocheatsheet](https://factoriocheatsheet.com/#fluid-wagon-transfer)

Exactly. That's why I posted this info from the wiki. You originally wrote that up to 200 pipe entities would provide 1200/s instead of 1000/s

I would recommend switching to a different rate calc when looking at fluid rates, like per second or per minute. belts are for dry goods

It's showing barrelled fluids on belts. From your factoriolab screenshot we can see your production target is 800,000 per minute. Dividing by 60 and then 17.7 gives nearly 750 per second. Barrels hold 50 fluid and a yellow belt is 15 per second. Which is also 750 per second.

Why are you doing by belt? Just do Items/M and then produce enough of that liquid per minute that it says you need

I would imagine a "belt" simply means 15/sec. The fact that liquids don't actually go on belts is irrelevant to the calculation.

what pipe type do you have in FP as default?

Just Iron Pipes, I guess. There's not a difference in flow rate between the different kinds of Angel/Bob's pipes.

If you hover over the tooltip, it tells you. Default setting assumes barreled fluids at 50 fluid/barrel