Armor Penetration to Resistance Ignored Formula (Level 70)

d4rkh0rs3 · June 2016

How to calculate your character's Resistance Ignored derived from the Armor Penetration stat.

If you have more data, please feel free to provide it to me for a more accurate formula. I am specifically interested in the Resistance Ignored value directly from the Armor Penetration stat (not your total Resistance Ignored).

RI = Resistance Ignored
ARP = Armor Penetration

RI = -0.0006973 + (0.0003319*(ARP^0.8493513))

ARP = ((RI + 0.0006973)/0.0003319)^(1/0.8493513)

Key points:

To have exactly 60% resistance ignored, you need an armor penetration stat of ~6,846. If you have other methods of obtaining resistance ignored, such as feats, boons, and ability scores, your armor penetration stat can be lowered accordingly.

In increments of 100 armor penetration stat:
Between 0 and 1,400: +1% (or more) RI
Between 1,500 and 2,900: +0.9% RI
Between 3,000 and 6,600: +0.8% RI
Between 6,700 and 17,000: +0.7% RI
Between 17,100 and 30,000: +0.6% RI

So if your armor penetration stat sits at 7,000 and you add another 100 armor penetration, your RI will increase ~+0.7%.

ARP and RI
100 1.6%
200 2.9%
300 4.1%
400 5.3%
500 6.4%
600 7.5%
700 8.6%
800 9.6%
900 10.6%
1000 11.7%
1100 12.6%
1200 13.6%
1300 14.6%
1400 15.5%
1500 16.5%
1600 17.4%
1700 18.3%
1800 19.2%
1900 20.2%
2000 21.1%
2100 21.9%
2200 22.8%
2300 23.7%
2400 24.6%
2500 25.5%
2600 26.3%
2700 27.2%
2800 28.0%
2900 28.9%
3000 29.7%
3100 30.6%
3200 31.4%
3300 32.2%
3400 33.1%
3500 33.9%
3600 34.7%
3700 35.5%
3800 36.4%
3900 37.2%
4000 38.0%
4100 38.8%
4200 39.6%
4300 40.4%
4400 41.2%
4500 42.0%
4600 42.8%
4700 43.6%
4800 44.4%
4900 45.1%
5000 45.9%
5100 46.7%
5200 47.5%
5300 48.3%
5400 49.0%
5500 49.8%
5600 50.6%
5700 51.3%
5800 52.1%
5900 52.9%
6000 53.6%
6100 54.4%
6200 55.1%
6300 55.9%
6400 56.7%
6500 57.4%
6600 58.2%
6700 58.9%
6800 59.6%
6900 60.4%
7000 61.1%
7100 61.9%
7200 62.6%
7300 63.4%
7400 64.1%
7500 64.8%
7600 65.6%
7700 66.3%
7800 67.0%
7900 67.8%
8000 68.5%
8100 69.2%
8200 69.9%
8300 70.7%
8400 71.4%
8500 72.1%
8600 72.8%
8700 73.6%
8800 74.3%
8900 75.0%
9000 75.7%
9100 76.4%
9200 77.1%
9300 77.8%
9400 78.6%
9500 79.3%
9600 80.0%
9700 80.7%
9800 81.4%
9900 82.1%
10000 82.8%
10100 83.5%
10200 84.2%
10300 84.9%
10400 85.6%
10500 86.3%
10600 87.0%
10700 87.7%
10800 88.4%
10900 89.1%
11000 89.8%
11100 90.5%
11200 91.2%
11300 91.9%
11400 92.6%
11500 93.2%
11600 93.9%
11700 94.6%
11800 95.3%
11900 96.0%
12000 96.7%
12100 97.4%
12200 98.0%
12300 98.7%
12400 99.4%
12500 100.1%
12600 100.8%
12700 101.4%
12800 102.1%
12900 102.8%
13000 103.5%
13100 104.2%
13200 104.8%
13300 105.5%
13400 106.2%
13500 106.9%
13600 107.5%
13700 108.2%
13800 108.9%
13900 109.5%
14000 110.2%
14100 110.9%
14200 111.5%
14300 112.2%
14400 112.9%
14500 113.5%
14600 114.2%
14700 114.9%
14800 115.5%
14900 116.2%
15000 116.9%
15100 117.5%
15200 118.2%
15300 118.8%
15400 119.5%
15500 120.2%
15600 120.8%
15700 121.5%
15800 122.1%
15900 122.8%
16000 123.5%
16100 124.1%
16200 124.8%
16300 125.4%
16400 126.1%
16500 126.7%
16600 127.4%
16700 128.0%
16800 128.7%
16900 129.3%
17000 130.0%
17100 130.6%
17200 131.3%
17300 131.9%
17400 132.6%
17500 133.2%
17600 133.9%
17700 134.5%
17800 135.2%
17900 135.8%
18000 136.4%
18100 137.1%
18200 137.7%
18300 138.4%
18400 139.0%
18500 139.7%
18600 140.3%
18700 140.9%
18800 141.6%
18900 142.2%
19000 142.9%
19100 143.5%
19200 144.1%
19300 144.8%
19400 145.4%
19500 146.1%
19600 146.7%
19700 147.3%
19800 148.0%
19900 148.6%
20000 149.2%
20100 149.9%
20200 150.5%
20300 151.1%
20400 151.8%
20500 152.4%
20600 153.0%
20700 153.7%
20800 154.3%
20900 154.9%
21000 155.5%
21100 156.2%
21200 156.8%
21300 157.4%
21400 158.1%
21500 158.7%
21600 159.3%
21700 159.9%
21800 160.6%
21900 161.2%
22000 161.8%
22100 162.4%
22200 163.1%
22300 163.7%
22400 164.3%
22500 164.9%
22600 165.6%
22700 166.2%
22800 166.8%
22900 167.4%
23000 168.0%
23100 168.7%
23200 169.3%
23300 169.9%
23400 170.5%
23500 171.1%
23600 171.8%
23700 172.4%
23800 173.0%
23900 173.6%
24000 174.2%
24100 174.8%
24200 175.5%
24300 176.1%
24400 176.7%
24500 177.3%
24600 177.9%
24700 178.5%
24800 179.2%
24900 179.8%
25000 180.4%
25100 181.0%
25200 181.6%
25300 182.2%
25400 182.8%
25500 183.4%
25600 184.1%
25700 184.7%
25800 185.3%
25900 185.9%
26000 186.5%
26100 187.1%
26200 187.7%
26300 188.3%
26400 188.9%
26500 189.5%
26600 190.1%
26700 190.8%
26800 191.4%
26900 192.0%
27000 192.6%
27100 193.2%
27200 193.8%
27300 194.4%
27400 195.0%
27500 195.6%
27600 196.2%
27700 196.8%
27800 197.4%
27900 198.0%
28000 198.6%
28100 199.2%
28200 199.8%
28300 200.4%
28400 201.0%
28500 201.6%
28600 202.2%
28700 202.8%
28800 203.4%
28900 204.0%
29000 204.6%
29100 205.2%
29200 205.8%
29300 206.4%
29400 207.0%
29500 207.6%
29600 208.2%
29700 208.8%
29800 209.4%
29900 210.0%
30000 210.6%

kreatyve · June 2016

I thought it was 1% of resistance ignored for every 400 ARP since they changed things, however I could be mistaken.

d4rkh0rs3 · June 2016

The consensus has been, specifically for armor penetration, every 100 points resulted in +1% resistance ignored up to a certain point before diminishing returns are experienced.

This was intended to be a simple way of viewing the armor penetration stat and is useful at (very) low armor penetration values (under 3,000).

The majority of other stats, such as Power, Defense, and Life Steal, follow a linear progression of 400 points = +1%.

stpensive · June 2016

d4rkh0rs3 said:

The majority of other stats, such as Power, Defense, and Life Steal, follow a linear progression of 400 points = +1%.

Recovery being an exception:

http://neverwinter.gamepedia.com/Recovery

armadeonx · June 2016

In my experience it's slightly less than 1% RI to 100 Arp, somewhere a little over 0.9%.

d4rkh0rs3 · June 2016

I actually mistyped it and will edit the original post:

In increments of 100 armor penetration stat. So if your armor penetration stat sits at 7,000 and you add another 100 armor penetration, your RI will increase ~+0.7%.

Between 0 and 1,400: +1% (or more) RI
Between 1,500 and 2,900: +0.9% RI
Between 3,000 and 6,600: +0.8% RI
Between 6,700 and 17,000: +0.7% RI
Between 17,100 and 30,000: 0.6% RI

d4rkh0rs3 · June 2016

@armadeonx do you mean at 90% RI (~11,000 armor penetration stat), each 100 points of armor penetration grants you slightly more than +0.9% RI?

The model I came up with shows +0.7% RI for an additional 100 armor penetration stat @ 11,000 armor penetration.

In other words, going from 11,000 to 11,100 armor penetration = +0.7% RI.

armadeonx · June 2016

What I mean is for example when getting one of my characters up from 50% RI to 60% I needed around 1100 points in arp and that this appeared to be static or linear.

I'll have a look later on a couple of my characters and check the % change as I add/remove armor pen points at different levels just to confirm.

cesar · June 2016

Interesting, I get 60% RI by reaching about 5940 ArmPen on my GWF.

armadeonx · June 2016

Boons add to it too

cesar · June 2016

Aren't boons included in the stat already? Don't really remember.

d4rkh0rs3 · June 2016

Nah, boons and ability scores are separate and additive to the numbers I showed above.

If you have boons and ability scores granting, say, 10% resistance ignored, meaning you want another 50% resistance ignored from armor penetration to equal a total of 60%, you would slot an armor penetration stat of ~5,500 as shown above.

alliera7311 · June 2016

Dont forget certain Weapon Enchants help too like Dread and Voral for example.

kitaar · June 2016

alliera7311 said:
Dont forget certain Weapon Enchants help too like Dread and Voral for example.

I'm not sure how those help your RI stat? Sure your not thinking about crit severity?

xpaeonx · June 2016

kitaar said:

alliera7311 said:
Dont forget certain Weapon Enchants help too like Dread and Voral for example.
I'm not sure how those help your RI stat? Sure your not thinking about crit severity?

I think he's saying the debuff on the transcendence version .. helps armor pen... it debuffs but in no way increases armor pen so not sure lol.

zak3056 · June 2016

alliera7311 said:
Dont forget certain Weapon Enchants help too like Dread and Voral for example.

The debuff and armor pen are two separate things. Stack ArPen all you want, but once you've got more RI than your target has DR, everything after that is useless. Terror, Plaguefire, HV, HP, etc are all IN ADDITION to ArPen.

eastward · October 2016

If all I do is PVE... Should I be maxing my RI at 75% ?

zephyriah · October 2016

eastward said:
If all I do is PVE... Should I be maxing my RI at 75% ?

No, you only need 59.5 Max, anything over that is currently wasted in PvE. You will usually see 60% is recommended because it is a nice round number and easier to remember.

armadeonx · October 2016

As far as I understood, Tiamat had 60% DR, do you have info that contradicts this?

zephyriah · October 2016

armadeonx said:
As far as I understood, Tiamat had 60% DR, do you have info that contradicts this?

Tiamat has 59.5, as I said people just round it up. You can find the information in PC threads for the exact DR of most types of monsters in high level zones. Here's one for Tiamat confirmation on Reddit

https://reddit.com/r/Neverwinter/comments/3ntup9/what_is_the_max_pve_ri_value_60_or_65/

thefabricant · October 2016

Resistance Ignored =0.01*((((70*0.9)^0.9)+41)*(Stat/9977.011)^0.85)

Where stat = your stat value.

Also, power/crit etc are 399.795:1, not 400:1.

wdj40 · October 2016

I am just wondering as the Mod drops for us tomorrow... But does anything new require more Arm Pen than usual?

Has anyone tested it yet?

thefabricant · October 2016

wdj40 said:
I am just wondering as the Mod drops for us tomorrow... But does anything new require more Arm Pen than usual?

Has anyone tested it yet?

Nothing does. <---Tested it.

greyhawk · October 2016

God I hope not. all gear on all of my characters is fine tuned to get as close to 60% RI, erroring on just above as opposed to below.

I'm sure 60% is still the max amount needed, but great question.

wdj40 · October 2016

thefabricant said:

wdj40 said:
I am just wondering as the Mod drops for us tomorrow... But does anything new require more Arm Pen than usual?

Has anyone tested it yet?
Nothing does. <---Tested it.</p>

Phew... I have exactly 59.8% Arm Pen in combat

Thank you.

mordekai · October 2016

Just as an addendum, has anyone ever studied the value of a full 60% vs spending the points on, say, more damage?
Would the slight reduction in damage vs big bads like Orcus be offset by increased damage against enemies whose DR was bypassed at a lower level?
Just looking at wdj's numbers, and would he be better increasing AP or POW at that point?

zephyriah · October 2016

mordekai#1901 said:
Just as an addendum, has anyone ever studied the value of a full 60% vs spending the points on, say, more damage?
Would the slight reduction in damage vs big bads like Orcus be offset by increased damage against enemies whose DR was bypassed at a lower level?
Just looking at wdj's numbers, and would he be better increasing AP or POW at that point?

AP would be a complete waste for him. Anything above 59.5 RI is wasted and he is at 59.8.

d4rkh0rs3 · October 2016

@thefabricant thanks for your input. I think your formula is a bit off at higher armor pen stat values compared to mine. For example, at 17,200 armor pen, I come up with ~137% RI with your formula compared to ~131% RI. I am (was) interested in higher armor pen stat values for PvP purposes.

armadeonx · October 2016

eh, given his track record I would trust thefabricants calculations over anyone elses.

d4rkh0rs3 · October 2016

@armadeonx I agree, he is a great asset and contributor to the community.

Run the numbers and decide for yourself.

thefabricant · October 2016

d4rkh0rs3 said:
@armadeonx I agree, he is a great asset and contributor to the community.

Run the numbers and decide for yourself.

The formula I presented isn't 1 I just came up with, I am 100% certain that it is the actual formula and not an approximation. It contains variables for things like character level.

70 = level of character
9977.011 = a unique value that exists for each level

You can use this formula to calculate the arp values for all values from 61-70. You just need that key number for each level. If you want to know why I am so certain, just refer to the site that may not be named.

I have checked it using my own arp values, up to 26.6k arp and I find it works correctly.

Armor Penetration to Resistance Ignored Formula (Level 70)

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