Calculate my weight without scales?

There is no way that's easy and accurate enough. I'm telling you this as a physicist. You can calculate it approximately, but you will be like 10-20 lbs off in your calculations, and that's not good enough of an accuracy.

You can get scales for $15 at Walmart. It's worth it.

if you are truly 5'8" with a waist of 25.5 " then you are either incredibly miss shaped (don't suck in your gut when you are measuring) or do no know how to read a tape measure (do you look like a flat board skinny, if so why not gain a pound or two) a waist of 24 is a size 0 - my baby sister at age 10 has a waist of 21 a 75 pounder at 4'6" - she is in the thin range for her size, thin but healthy, the entire family is tall and thin - she can wear a zero for gals but they are a bit long on her and a little loose in the waist now mom is 5'8" tall at 48 years old she pulls in at 145/150 pounder, she has had 2 children - her waist is a 28, she is thinner that all but two other moms at school, she is thinner than 3/4 of the female classmates in my high school, but her weight is in muscle mass, she is capable of lifting 100 pound semi tires by her self and loading them into a truck without any help, most of the guys in my school can't do that, did you know that muscle weighs more than fat? so do you see the difference? you can't possibly measure weight by size - mom is the same height as you, but she may possibly weigh in more than you, but look skinnier than you because she is fit not flab get it? so next time you are at a place with a scale - hop on it and weigh yourself, we don't own a scale either but every time we go to the vets for our dogs we hop on their scale just for fun, to see who weighs more the dog or one of us ( we have 4 really big dogs)

Use fruit to add natural sweetness instead of white sugar. Try this muffin menu.

Skip ordering pizza and make one of these simple crusts at home: gluten-free lovely potato crust, a quinoa basil crust that's also gluten no cost, or this low-carb cauliflower crusting.

Nosh on baked carrot chips as an alternative to greasy potato chips.

Walk to your co-worker's desk to chat as an alternative to instant messaging.

Always bring snacks on the trail to avoid having to struck convenience stores, fast-food chains, as well as airport food courts.

Stop being so tight and spend some money on scales!! or even better join a gym they have scales there as well. Besides as your older brother I feel it is my responsibility to tell you that yes you are fat(lol!) even fatter than me. hahahahahahahahahahahahaha!!!

Well, that one would be difficult but if you stand up straight and look straight down and you can't see your toes, then you are probably over weight and should be careful and cut the fat and sugar intake. If you see your toes then you are probably ok.

This works for any age. haha

Use veggies like carrots or zucchini rather than spaghetti.