In Black Desert Online (BDO), successfully landing hits on your enemies is crucial for efficient PvE grinding and combat. Your ability to hit a monster is determined by the interplay between your character's Accuracy and the monster's Evasion and Defense (DP). This calculator helps you estimate your PvE hit rate against various monsters.
Key Stats:
Accuracy: This stat on your gear, with buffs, and from certain skills, directly contributes to your chance to hit. Higher Accuracy means a better chance to overcome enemy defenses.
DP (Defense Points): Monsters have DP, which acts as a baseline defense against your attacks. Some of this DP can be bypassed.
Evasion: While monsters in PvE don't have a direct "Evasion" stat like players, their inherent resistance to being hit is often factored in through their DP and sometimes specific mechanics or buffs that effectively increase their "Evasion."
DP Bypass: Certain skills, elixirs, food buffs, and even some gear effects can bypass a percentage of a target's DP. This is extremely valuable for increasing your hit rate against high-DP monsters.
Buffs: Both your Accuracy and the monster's Evasion (often represented as an increase to their defensive capabilities) can be influenced by temporary buffs, which are common in BDO.
How Hit Rate is Calculated (Simplified BDO PvE Model:
The core concept is that your Accuracy needs to overcome the monster's effective defenses. While the exact BDO formula is complex and proprietary, a commonly accepted approximation for PvE hit rate involves comparing your effective Accuracy against the target's effective DP.
The simplified formula used in this calculator is:
Hit Rate % = MAX(0, MIN(100, (Your Accuracy + Accuracy Buffs - (Target DP - DP Bypass)) / (Target DP + Evasion Buffs) * 100))
This formula aims to represent how your offensive stats (Accuracy) contend with the enemy's defensive stats (DP and simulated Evasion buffs). A higher Accuracy value relative to the monster's effective defenses leads to a higher hit rate. The MAX and MIN functions ensure the hit rate stays between 0% and 100%.
Using the Calculator:
1. Target's DP: Enter the base Defense Points of the monster you are fighting. You can often find this information on BDO fan wikis or community sites.
2. Your Character's Accuracy: Input your total Accuracy from your character sheet, including gear, crystals, and any permanent buffs.
3. DP Bypass: Add any percentage of DP you bypass from skills, elixirs (like Coelacanth Meat), food buffs (like Calpheon Special meals), or certain character passives.
4. Enemy Evasion Buffs: If the monster has a specific buff that increases its evasion or defensive capabilities (less common in pure PvE but can occur with certain world bosses or events), input it here as a percentage.
5. Your Accuracy Buffs: Enter any percentage increases to your Accuracy from temporary buffs like certain elixirs (e.g., Awakened Spirit's Grilled Bird), food buffs, or party buffs.
Click "Calculate Hit Rate" to see your estimated success chance. Aim for a hit rate of 95-100% for optimal damage output and combat efficiency. Missing too many hits significantly reduces your overall damage per hour.
Example Scenario:
Let's say you are fighting a monster with 550 DP. Your character has 320 Accuracy. You are using an elixir that provides 5% DP Bypass and a food buff that gives you 15% Accuracy. The monster has no special evasion buffs.
Target DP: 550
Your Accuracy: 320
DP Bypass: 5
Enemy Evasion Buffs: 0
Your Accuracy Buffs: 15
With these stats, the calculator will determine your effective hit rate, helping you understand if you need to increase your Accuracy or utilize more DP bypassing effects.
function calculateHitRate() {
var targetDefense = parseFloat(document.getElementById("targetDefense").value);
var playerAccuracy = parseFloat(document.getElementById("playerAccuracy").value);
var dpBypass = parseFloat(document.getElementById("dpBypass").value);
var evasionBuffs = parseFloat(document.getElementById("evasionBuffs").value);
var accuracyBuffs = parseFloat(document.getElementById("accuracyBuffs").value);
var resultDiv = document.getElementById("result");
if (isNaN(targetDefense) || isNaN(playerAccuracy) || isNaN(dpBypass) || isNaN(evasionBuffs) || isNaN(accuracyBuffs)) {
resultDiv.innerHTML = "Please enter valid numbers for all fields.";
return;
}
// Ensure buffs are not negative
dpBypass = Math.max(0, dpBypass);
evasionBuffs = Math.max(0, evasionBuffs);
accuracyBuffs = Math.max(0, accuracyBuffs);
// Calculate effective DP and effective Accuracy
var effectiveTargetDP = targetDefense + evasionBuffs;
var effectivePlayerAccuracy = playerAccuracy + accuracyBuffs;
// Calculate the difference
var accuracyVsDefense = effectivePlayerAccuracy – (targetDefense – (targetDefense * (dpBypass / 100)));
// Basic hit rate formula approximation
// The actual BDO formula is more complex, this is a common player-made approximation.
// It aims to scale hit rate based on the ratio of accuracy to defense.
// A common simplified approach is to relate the difference to a base denominator.
// Let's use a denominator that represents a "standard" challenge,
// or directly use the target's effective DP as a scaling factor.
// A common way to model this:
// HitRate = (PlayerAccuracy – (TargetDP * (1 – DP_Bypass_Percent))) / (TargetDP + Evasion_Buff_Percent) * Scaling_Factor
// The exact scaling factor and formula are not public.
// We'll use a pragmatic approach: higher effective accuracy against effective defense leads to higher hit rate.
// Let's try a formula that's sensitive to the gap:
// If Accuracy is much lower than effective defense, hit rate is low.
// If Accuracy is much higher, hit rate is high (capped at 100%).
// A common player-made approximation formula might look like:
// HitRate = BaseHitRate + (EffectiveAccuracy – EffectiveTargetDefense) * Sensitivity
// Or a ratio-based approach:
// HitRate = MAX(0, MIN(100, (EffectivePlayerAccuracy – (targetDefense * (1 – dpBypass/100)))) / (targetDefense * (1 + evasionBuffs/100)) * 100 ) — This can be unstable.
// Let's refine with a more common community model interpretation:
// Effective DP = Target DP – (Target DP * DP Bypass %) OR Target DP * (1 – DP Bypass %) if bypass is %)
// Effective Accuracy = Player Accuracy + Accuracy Buffs
// The core idea is: Accuracy needs to overcome Defense.
// Bypassed DP is subtracted from Target DP.
// Evasion buffs increase the target's effective defense/evasion.
// Accuracy buffs increase player accuracy.
// Formula structure often seen: (PlayerAcc – EffectiveMonsterDefense) / (SomeDenominator)
// Let's define EffectiveMonsterDefense based on DP and evasion buffs.
// And then calculate how PlayerAcc fares against it.
// DP Bypass is usually a percentage of DP that is ignored.
// If DP Bypass is 50%, then 50% of Target DP is ignored.
var actualDPToOvercome = targetDefense * (1 – (dpBypass / 100)); // DP remaining after bypass
// Evasion buffs increase the difficulty to hit. They add to the effective defense.
var totalEffectiveDefense = actualDPToOvercome + (targetDefense * (evasionBuffs / 100)); // Simplified: adding % of base DP as evasion
// The core comparison: Your effective accuracy against their effective total defense.
var hitChanceNumerator = effectivePlayerAccuracy – totalEffectiveDefense;
// Now, how to translate this difference into a percentage?
// A common heuristic is that reaching 100% hit rate requires significant accuracy,
// and hitting ~50% might be around when Accuracy = Effective Defense.
// A simple linear scaling is often too aggressive or too weak.
// Let's try a model where you need X accuracy to beat Y defense.
// A reasonable denominator for scaling might be related to the target's base DP or a fixed value representing general difficulty.
// A very common approximation in communities uses a formula similar to:
// Hit Rate = 100 * (PlayerAccuracy – TargetDefense) / (TargetDefense + PlayerAccuracy) — This is too simple.
// Let's use a refined approximation often discussed:
// Hit Rate = MAX(0, MIN(100, (EffectivePlayerAccuracy – EffectiveTargetDefense) / Denominator * 100 ))
// What's a good Denominator? Often it's related to the base DP of the monster or a fixed scaling.
// If Accuracy = Effective Defense, hit rate should be significant but not 100%.
// If Accuracy >> Effective Defense, hit rate should be 100%.
// If Accuracy << Effective Defense, hit rate should be ~0%.
// Let's try a model where your accuracy needs to be X% of the effective defense plus some base.
// Consider a reference point: if EffectivePlayerAccuracy = EffectiveTargetDefense, Hit Rate ~ 50%?
// If EffectivePlayerAccuracy = EffectiveTargetDefense * 2, Hit Rate ~ 90-100%?
// This calculation is a sensitive estimation. The actual game formula is complex.
// Let's use a common formula that is relatively well-received for estimation:
// The formula often seen is structured around the difference:
// Hit Rate (%) = 50 + 0.5 * (Your_Accuracy – Target_Effective_Defense)
// Where Target_Effective_Defense = Target_DP – DP_Bypass + Evasion_Buffs
// And Your_Accuracy = Player_Accuracy + Accuracy_Buffs
var effectiveTargetDefenseFinal = targetDefense – (targetDefense * (dpBypass / 100)) + (targetDefense * (evasionBuffs / 100));
var effectivePlayerAccuracyFinal = playerAccuracy + accuracyBuffs;
var estimatedHitRate = 50 + 0.5 * (effectivePlayerAccuracyFinal – effectiveTargetDefenseFinal);
// Clamp the result between 0 and 100
estimatedHitRate = Math.max(0, Math.min(100, estimatedHitRate));
resultDiv.innerHTML = "Estimated PvE Hit Rate: " + estimatedHitRate.toFixed(2) + "%";
}
.calculator-container {
font-family: sans-serif;
border: 1px solid #ccc;
padding: 20px;
margin: 20px 0;
border-radius: 8px;
background-color: #f9f9f9;
}
.calculator-container h2 {
text-align: center;
margin-bottom: 20px;
color: #333;
}
.calculator-inputs {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
gap: 15px;
margin-bottom: 20px;
}
.input-group {
display: flex;
flex-direction: column;
}
.input-group label {
margin-bottom: 5px;
font-weight: bold;
color: #555;
}
.input-group input {
padding: 10px;
border: 1px solid #ccc;
border-radius: 4px;
font-size: 1rem;
}
.calculator-container button {
display: block;
width: 100%;
padding: 12px 20px;
background-color: #4CAF50;
color: white;
border: none;
border-radius: 4px;
font-size: 1.1rem;
cursor: pointer;
transition: background-color 0.3s ease;
margin-bottom: 20px;
}
.calculator-container button:hover {
background-color: #45a049;
}
.calculator-result {
text-align: center;
font-size: 1.5rem;
color: #333;
background-color: #e0e0e0;
padding: 15px;
border-radius: 4px;
}
article {
margin-top: 30px;
padding-top: 20px;
border-top: 1px solid #eee;
}
article h3, article h4 {
color: #444;
margin-bottom: 10px;
}
article p {
line-height: 1.6;
color: #666;
margin-bottom: 15px;
}
article ul {
margin-bottom: 15px;
padding-left: 20px;
}
article li {
margin-bottom: 8px;
color: #666;
}
article code {
background-color: #e0e0e0;
padding: 2px 5px;
border-radius: 3px;
font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
}