Decent approximations and other time savers

Units and Measurement

Good Enough Numbers

A kilogram is just over 2 pounds.

A meter is a bit more than a yard.

The circumference of a circle is a bit under 6 and a half times its radius.

Measuring Turning Circles

When turning 45 degrees or less, the straight line distance is not much smaller than the actual distance the vehicle or creature would have to travel.

When turning 90 degrees, the distance traveled is basically 50% more than the radius.

Measuring Distances

Generally, waving a measuring tape of about the right distance gets you a pretty good idea of how far something can move or shoot.

Charts

Shooting through Objects

For checking if your character can reasonably be expected to hit an enemy on the other side of something

Calculate the most damage your character could be expected to deal. If you have 2-4 attacks, use the damage for a single crit. If your character has more, or is using sniper a double crit becomes more reasonable. Once you have the most damage, compare the amount of damage required to destroy the object (HP * Toughness) with the Effective Material Damage in the chart below. If the EMD is higher by even a small amount, and you have a decent amount of Demolition, then it is likely that your character can severely wound if not kill the target.

For checking the results of an attack

Find the EMD for your attack by crossing the damage and your Demolition, and subtract the effective damage required for the object (HP * Toughness). Then, take the subtracted result and find which EMD values of the matching category that the subtracted result lies between. The lower EMD value indicates the amount of real damage dealt to the target.

If you have Piercing, when finding the EMD for your attack, look in the column two steps to the right.

Effective Material Damage

Real damage	Demolition
	0	2	4	6	8	10	12	14
1	1	2	4	8	16	32	64	128
2	2	4	8	16	32	64	128	256
3	3	6	12	24	48	96	192	384
4	4	8	16	32	64	128	256	512
5	5	10	20	40	80	160	320	640
6	6	12	24	48	96	192	384	768
7	7	14	28	56	112	224	448	896
8	8	16	32	64	128	256	512	1024
9	9	18	36	72	144	288	576	1152
10	10	20	40	80	160	320	640	1280
11	11	22	44	88	176	352	704	1408
12	12	24	48	96	192	384	768	1536
13	13	26	52	104	208	416	832	1664
14	14	28	56	112	224	448	896	1792
15	15	30	60	120	240	480	960	1920
16	16	32	64	128	256	512	1024	2048
17	17	34	68	136	272	544	1088	2176
18	18	36	72	144	288	576	1152	2304
19	19	38	76	152	304	608	1216	2432
20	20	40	80	160	320	640	1280	2560
21	21	42	84	168	336	672	1344	2688
22	22	44	88	176	352	704	1408	2816
23	23	46	92	184	368	736	1472	2944
24	24	48	96	192	384	768	1536	3072
25	25	50	100	200	400	800	1600	3200
26	26	52	104	208	416	832	1664	3328
27	27	54	108	216	432	864	1728	3456
28	28	56	112	224	448	896	1792	3584
29	29	58	116	232	464	928	1856	3712
30	30	60	120	240	480	960	1920	3840