MUME

Is there an easy way to tell if a weapon is too heavy for my character to wield, without having to buy it and find out the hard way?

I can get the weapon weight, I think from a chart here: http://tabris23.tripod.com/. How can I compare that to my STR?

For one-handed weapons, approximately weight in lbs * 3 str is required.

Pounds, as weapon weights are expressed on the MUME Wiki, are alright. But how does this compare to the units used on such pages as Jahara's http://nschimme.tripod.com/items.htm?

Weight:
25 = 1/2 lb
50 = 1 lb
650 = 1 stone

That was taken from close to the top on the page you submitted

Okay, so I'm not wise. I just roleplay wise

The unit used internally is 1 decagramme.

STR/3 STR/3*50
STR Lbs-Wield Decagrams-Wield
1 0.33 16.67
2 0.67 33.33
3 1.00 50.00
4 1.33 66.67
5 1.67 83.33
6 2.00 100.00
7 2.33 116.67
8 2.67 133.33
9 3.00 150.00
10 3.33 166.67
11 3.67 183.33
12 4.00 200.00
13 4.33 216.67
14 4.67 233.33
15 5.00 250.00
16 5.33 266.67
17 5.67 283.33
18 6.00 300.00
19 6.33 316.67
20 6.67 333.33