Height/Weight Formula

[kilemall]

If so, glasses should count as bionic "detachable implant" that recovers your dex when on :devil:...

:CoW::CoW::CoW:
My God, what monster have I unleashed?

 

[McPerth]

:CoW::CoW::CoW:
My God, what monster have I unleashed?

Not you, but me when jocking:

(at which age begin aging rolls for sight?)

 

[kilemall]

Alright, just for giggles, the spacer mod to the above formula (spacer defined as a person who grew up in low-G habitats without benefit of artificial gravity, spin or field generated).

-2 STR +1 DEX -1 END Vacc Suit -1

So the 777 person ends up being

586
46kg
1.7 m

Shorter a bit, and thinner.

Bottom line, grow those kids up in gravity.

Alternatives to modifying at the stats level for home environments would be to alter some of the base formula feed adds/multipliers.

Say, upping the .4 to .5 or higher for height, top diet, gene engineering and/or Darrian-like situations, and lowering for high-G/stressor environments.

Or upping the STR weight multiplier for showing greater bone/muscle density for high-G, or reduce it for low-caloric growth stunting.

 

[kilemall]

This is the thread that has been rattling around my brain prompting this exercise in statmongering-

http://www.travellerrpg.com/CotI/Discuss/showthread.php?t=33391

I can think of another perfectly good reason to have this in my back pocket- good for quick description of NPCs.

 

[G. Kashkanun Anderson]

Alright, I'm in a stat-y mood right now, since I've been knee-deep in developing my own Advanced Star System generator for several weeks, so I feel like taking a crack at this. Or, at any rate, if I ever felt a need to extrapolate height/weight for P/NPC characters, this is how I'd do it.

Assuming you're dealing with the average Imperial/Solomani human, you begin with a height variance, using the formula:

(STR-DEX+(END-7)) * 0.02

Add this number to 1.8 (for males), or 1.66 (for females), and you have their height in meters.

You can use the STR, DEX and END numbers as they are initially rolled for this (the assumed 18-year old stats), or you could use what you come up with after 1 or 2 terms of service. I prefer the latter myself, since I know I didn't stop growing until I was in my mid-twenties at least, and wound up almost two inches taller as a 20-something over my 18-year-old self.

For mass/weight, we'll assume STR and END are the basic factors that make up a person's build, and work from there. There are two formulae in this case, to equate for the differences in how males and female frames 'bulk up'. This accounts for the reality of sexual dimorphism amongst Solomani humans, but note that this has no real affect in-game, unless you have a starship that consists of nothing but tall shelves, or you're faced with explosive decompression and a closet full of Vacc Suits that come in only Women's Size 6.

At any rate, the formulae are:

((STR * END) / 10) + 18 (male)
((STR * END) / 20) + 18 (female)

This gives you a character's basic BMI (Body Mass Index), which is a good stand-in for their frame and musculature. This is their 'fit' status, and assumes that they aren't carrying anything extra around the middle; if you want them to be more sedentary, you can add an additional 1d6 to the result, or even 2d6, if you're in a really sadistic mood.

Unlike the height formula, this number can (and will) vary throughout the lifetime of the character.

Now that you have real-world stats, you can use them to get a real-world number for their mass (weight). And in the real world, weight is derived from height and BMI by the formula:

HEIGHT^2 * BMI

Now, using the stats examples given previously in this thread, we can see how well these formulae work. English & Imperial measurements provided for reference:

111 (The Walking Dead)
Male.......Ht: 1.68m (5' 6"), BMI 18.1, Mass/Weight: 51kg (113lb/8st 1lb)
Female...Ht: 1.54m (5' 0"), BMI 18.1, Mass/Weight: 43kg (95lb/6st 11lb)

777 (Joe and Jane Doaks)
Male.......Ht: 1.80m (5' 11"), BMI 22.9, Mass/Weight: 74kg (162lb/11st 8lb)
Female...Ht: 1.66m (5' 5"), BMI 20.5, Mass/Weight: 56kg (123lb/8st 11lb)

378 (The Weekend Joggers)
Male.......Ht: 1.74m (5' 9"), BMI 20.4, Mass/Weight): 62kg (136lb/9st 10lb)
Female...Ht: 1.60m (5' 3"), BMI 19.2, Mass/Weight: 49kg (108lb/7st 10lb)

B89 (The Gym Monkeys)
Male.......Ht: 1.90m (6' 3"), BMI 27.9, Mass/Weight: 101kg (222lb/15st 12lb)
Female...Ht: 1.76m (5' 9"), BMI 23.0, Mass/Weight: 71kg (156lb/11st 2lb)

6AB (Varsity Track)
Male.......Ht: 1.80m (5' 11"), BMI 24.6, Mass/Weight: 80kg (176lb/12st 8lb)
Female...Ht: 1.66m (5' 5"), BMI 21.3, Mass/Weight: 59kg (130lb/9st 4lb)

3CC (A Pair of Crack Shots ... if they can lift the rifle)
Male.......Ht: 1.72m (5' 8"), BMI 21.6, Mass/Weight: 64kg (141lb/10st 1lb)
Female...Ht: 1.58m (5' 2"), BMI 19.8, Mass/Weight: 49kg (108lb/7st 10lb)

2CC (Break out the Power Armor)
Male.......Ht: 1.70m (5' 7"), BMI 20.4, Mass/Weight: 59kg (130lb/9st 4lb)
Female...Ht: 1.56m (5' 2"), BMI 19.2, Mass/Weight: 47kg (103lb/7st 5lb)

And some extremes, to really test the formulae. Note that the first two are technically feasible, but effectively impossible to get under the conditions I prescribed above.

F1F (Mr & Mrs Sleestak)
Male.......Ht: 2.24m (7' 4"), BMI 40.5, Mass/Weight: 203kg (447lb/31st 13lb)
Female...Ht: 2.10m (6' 11"), BMI 29.3, Mass/Weight: 129kg (283lb/20st 3lb)

1F1 (The Crack Shot Sprites)
Male.......Ht: 1.40m (4' 7"), BMI 18.1, Mass/Weight: 35kg (77lb/5st 7lb)
Female...Ht: 1.26m (4' 2"), BMI 18.1, Mass/Weight: 29kg (64lb/4st 8lb)

CCC (The Olympians)
Male.......Ht: 1.90m (6' 3"), BMI 32.4, Mass/Weight: 91kg (200lb/14st 4lb)
Female...Ht: 1.76m (5' 9"), BMI 25.2, Mass/Weight: 78kg (172lb/12st 4lb)

222 (The Hemophiliac Twins)
Male.......Ht: 1.70m (5' 7"), BMI 18.4, Mass/Weight: 53kg (117lb/8st 5lb)
Female...Ht: 1.56m (5' 2"), BMI 18.2, Mass/Weight: 44kg (97lb/6st 13lb)

The numbers seem to work great, except for the freak stat ones, and they're really not going to happen, outside of genetic engineering. Try them out yourself, and see what you get.

As a final note, the numbers can be fairly customized for different versions of humaniti simply by adjusting the baselines. Your basic Zhodani, for example, should work with 2.0m for baseline height and 22.5 for baseline BMI (the 18 number in the original formula). I dunno about sexual dimorphism in this case; maybe it's 2.1 for Zhodani males and 1.9 for Zhodani females, assuming a similar ratio as Solomani humans, but that's not really a safe assumption.

 

[kilemall]

Hmmm, I'll think about it, although one of the things I wanted to avoid was a linear curve result. I want thin and fat without monkeying with any additional die rolls.

The 111 would be a baby most of the time as everyone but the vatgrown goes through that stage, so right there is a problem with the formula enforcing a final adult finish. I wanted to be able to do kids as well.

I also want sedentary largely determined by endurance, the idea being that endurance deals in metabolism as a large part of the related systems.

 

[Spartan159]

Having been inspired by this thread to go looking around and poking at things, I have come up with the following randomized chart and information. Yes, it's a percentile chart, I've been using a www.random.org as a resource lately. Anyway, here is what I've come up with:

Random Height/Weight chart calculated for an "ideal" BMI of 21.7
Height rounded to nearest centimeter, weight rounded to nearest 10th kg


% m kg
01 1.52 50.1
02 1.55 52.1
03-04 1.57 53.5
05-08 1.60 55.5
09-15 1.63 57.7
16-23 1.65 59.1
24-33 1.68 61.2
34-44 1.70 62.7
45-55 1.73 64.9
56-66 1.75 66.5
67-75 1.78 68.8
76-83 1.80 70.3
84-90 1.83 72.7
91-96 1.85 74.3
97-98 1.88 76.7
99 1.91 79.2
100 1.93 80.8


As previously mentioned, real world weight can be calculated as Height (m)^2 * BMI = Weight (kg)

BMI Categories:
Underweight = <18.5
Normal weight = 18.5–25
Overweight = 25–30
Obesity = BMI of 30 or greater

Note that BMI measurement ignores variation in physical characteristics and does not differentiate between muscle mass and fat mass.

 

[kilemall]

Ok great.

But I want some short powerful people, tall skinny weak people, people that surprise with their grace and clumsiness, high gee natives with barrel chests and powerful strength, small wiry but hard to kill scouts, and everything in-between.

Pegging people to a healthy BMI out of the box messes with characterization, or even a sense of the 'real world'.

 

[Spartan159]

Ok great.

But I want some short powerful people, tall skinny weak people, people that surprise with their grace and clumsiness, high gee natives with barrel chests and powerful strength, small wiry but hard to kill scouts, and everything in-between.

Pegging people to a healthy BMI out of the box messes with characterization, or even a sense of the 'real world'.

That's what the BMI chart and formula are for. The weights I gave for height are just the median values.

 

[kilemall]

That's what the BMI chart and formula are for. The weights I gave for height are just the median values.

Understood, and I also have been trying to work with the model of either muscle or fat.

I just don't want to have to track on another stat based on BMI, or be stuck using it as the modifier for dietary changes in starvation or obesity.

I also want aging to be able to naturally either have a person go to fat or become dangerously thin, AND lose height.

 

[77topaz]

Understood, and I also have been trying to work with the model of either muscle or fat.

I just don't want to have to track on another stat based on BMI, or be stuck using it as the modifier for dietary changes in starvation or obesity.

I also want aging to be able to naturally either have a person go to fat or become dangerously thin, AND lose height.

Post #30 is exactly the same as this post (#31), except it doesn't have the last three words. I assume you meant to edit those last three words in and accidentally double posted?

 

[kilemall]

Post #30 is exactly the same as this post (#31), except it doesn't have the last three words. I assume you meant to edit those last three words in and accidentally double posted?

Yep, looks like. Fixed, sorta.

 

[77topaz]

The dread double post! Not fun like a Double Adventure.

Yep, looks like. Fixed, sorta.

In the "Edit Post" menu, there is a button to delete a post, too.

 

[kilemall]

In the "Edit Post" menu, there is a button to delete a post, too.

So there is. For some reason I read that as delete text. Thanks!

 

[Timerover51]

See the following website for the average nutrition requirements of humans from birth through age 51. It also gives the nutritive value of a wide range of foods.

http://www.ars.usda.gov/SP2UserFiles/Place/80400525/Data/hg72/hg72_2002.pdf

As for water, a minimum of 1/2 gallon or two liters a day to maintain hydration, unless in an arid, hot climate, in which case double the water. You can get by with less with minimal activity.

 

[kilemall]

Okay, getting REEEAL close.

Height-

(STR x .1) + (DEX + END x .05) + .3 = height in meters



Weight-

(STR²) + (DEX + END/2) +4 = weight in kg


Dimorphism done in the front end, +1 STR -1 DEX + 1 END for males, -1 STR +1 DEX -1 END +1 EDU for females.

So-

Dimorphic Jack-
868
Height 1.8 Meters, Weight 75 kg BMI 23.1


Dimorphic Jill-
686
Height 1.6 Meters, Weight 47 kg BMI 18.4





Thinking Dehydration and Starving are hits against all three stats, one hit per stat per day for dehydration and starving 1 hit per three days, cumulative. Works out pretty closely to the usual disable/death rates, I think.

Thinking about more flash re: variables on weight loss based on activity level x endurance, higher endurance is higher metabolism, but basically recalced weight based on damage stat level until recovered or dead.

Sedentary should be more like the reverse of the LBB3 physical fitness regimen, failure of will check to limit food intake in sedentary activity levels means losing -1 on all physical stats and weight calced as though they went up +1.

Check once per sedentary year period or immediately after a strenuous activity period reduction to normal or sedentary. Ending a +1 physical fitness regimen requires a will check to reduce intake again after less activity.

Reversing would require a physical fitness program for six months per level lost, the +1 physical fitness option would only be available after all sedentary hits are worked off.

 

[G. Kashkanun Anderson]

Okay, getting REEEAL close.

Height-

(STR x .1) + (DEX + END x .05) + .3 = height in meters



Weight-

(STR²) + (DEX + END/2) +4 = weight in kg


Dimorphism done in the front end, +1 STR -1 DEX + 1 END for males, -1 STR +1 DEX -1 END +1 EDU for females.

I think you mean:

(STR x 0.1) + ((DEX + END) x 0.05) + 0.3

and

(STR²) + ((DEX + END) / 2) + 4

... right? I only bring up this pedantry because I had to run a few test numbers to see which way you meant.

So-

Dimorphic Jack-
868
Height 1.8 Meters, Weight 75 kg BMI 23.1


Dimorphic Jill-
686
Height 1.6 Meters, Weight 47 kg BMI 18.4

The test is never in how well something runs with the average, but how it handles with the extremes:

111 Male
Height: 0.55m (1' 10'') Mass/Weight: 5.5kg (12lb)

111 Female

 

[G. Kashkanun Anderson]

At CCC, you're talking about a guy who's 9' 3" tall and over 400 pounds. An FFF'er is going to be eleven feet tall and six hundred pounds!

 

[kilemall]

I think you mean:

(STR x 0.1) + ((DEX + END) x 0.05) + 0.3

and

(STR²) + ((DEX + END) / 2) + 4

... right? I only bring up this pedantry because I had to run a few test numbers to see which way you meant.

Okay so my notation is stinky. Duly noted and accepted.

The test is never in how well something runs with the average, but how it handles with the extremes:

111 Male
Height: 0.55m (1' 10'') Mass/Weight: 5.5kg (12lb)

111 Female

Hmm, well technically most players will be 2 at minimum at character gen, which yields a midget.

I did do 111 as an absolute test case, the intent was to be able to model all the way from baby to end of life (which to me is what 111 is without aging or severe permanent physical damage) but did not apply dimorphism as babies pretty much don't exhibit it starting out. Also, 010 is just about dead.

So perhaps a disclaimer for baby modelling, should work ok for kids though. Although if one is shooting at kids or determining flechette damage on them I'd say something has gone terribly amiss with your adventure writing and/or players.

Not sure where you are getting the 111 results you list, should be .5 m and 6 kg.

 

[kilemall]

At CCC, you're talking about a guy who's 9' 3" tall and over 400 pounds. An FFF'er is going to be eleven feet tall and six hundred pounds!

Hmmm, no, CCC should be

2.7m 160 kg which translates to

8' 10", 353 pounds.

Darn near bang on for the tallest man medically recorded-

https://en.wikipedia.org/wiki/Robert_Wadlow

So to me, I'm largely validated here.

You guys taught me my lesson, I ran it through the extremes.