Quick Answer
In Evony: The King's Return, total march size = Rally Spot base × (1 + all march-size % buffs) + flat bonuses — the percentages multiply only the Rally Spot base, never your buffed total. A layered PvP march then keeps one thin layer (commonly 1,000 troops) of every tier and type as a buffer and puts the rest into a single top-tier main stack.
How Evony March Size Is Calculated
Your march size is built from three parts: the Rally Spot base (the building’s own capacity — 800 at level 1, rising to 860,000 at level 45), every march-size percentage buff you own, and every flat bonus. The part most players get wrong: the percentages multiply only the Rally Spot base, never your already-buffed total.
A level-45 Rally Spot (860,000) with +100% research shows 860,000 + 860,000 = 1,720,000; a level-1 spot (800) with the same +100% shows 800 + 800 = 1,600.
Because every percentage stacks additively on the same base, one extra buff always adds base × that % — a +15% ring on an 860,000 base adds 129,000 troops whether your march is 1 million or 3 million. The calculator’s what-if field uses exactly this rule, so you can price a new ring, dragon level or Imperial Seal level in troops before you chase it.
Maximum March Size by Keep Level
These community reference builds use the research, equipment and buff assumptions listed in the source, including a +200% temporary march-size item. They are examples rather than guaranteed limits for each keep level:
| Keep level | Approx. max march size | Keep level | Approx. max march size |
|---|---|---|---|
| K26 | 518,200 | K34 | 1,943,400 |
| K27 | 604,450 | K35 | 2,335,000 |
| K28 | 782,200 | K36 | 2,539,500 |
| K29 | 961,700 | K37 | 2,946,350 |
| K30 | 1,172,400 | K38 | 3,246,550 |
| K31 | 1,323,150 | K39 | 3,627,750 |
| K32 | 1,471,400 | K40 | 4,527,500 |
| K33 | 1,708,900 | — | — |
The figures above already include a +200% march-size item. Replacing it with a +300% Battlefield item adds another 100% of the Rally Spot base, rather than adding 300% again. Your own research, equipment and other buffs may produce a different total.
Planning Troop Layers
A layered march keeps a thin slice — commonly 1,000 troops — of every tier of every troop type below your main stack. Community guides describe layers as a way to influence targeting and protect higher-tier troops, but their explanations of hidden combat rounds are theories tested through play. This calculator plans a chosen main stack plus smaller layers; it does not predict battle results or identify an optimal march. Experienced players keep three preset attack marches (ranged, ground, mounted) plus a ghosting march, and rebuild the layers after every fight. Rebuilding them costs training time, which the Evony troop calculator prices for any quantity once your training-speed bonus is applied.
Attack-layer sizes vary with the player and target; 1,000 troops is an example, not a universal minimum. Defensive (in-wall) layers are larger in the cited community guide, which gives these keep-level ranges:
| Keep level | Defensive layer per tier per type |
|---|---|
| K25 and lower | 5,000 – 10,000 |
| K26 – K30 | 20,000 – 50,000 |
| K30 – K33 | 50,000 – 100,000 |
| K33 – K35 | 200,000+ |
How to Use the Evony March Calculator
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Pick March layers or March size
Use March layers to split a march into a main stack plus buffer layers, or March size to work out your total march capacity from the Rally Spot base and your buffs.
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Layers mode: enter your march and layer plan
Type your total march size (the buffed number the game shows when you set up a march), pick your main troop type and highest tier, then set your chosen layer size — 1,000 per slot is a starting example — and which types to layer.
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Size mode: enter base, % buffs and flats
Type your Rally Spot base capacity, the sum of your march-size % buffs (research, general, ring, dragon, seal, officer) and the sum of your flat bonuses (research flats, VIP, War Horn, title, citizens).
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Test a buff before you buy it
In Size mode, put a new ring or dragon level’s % into the what-if field. The tool shows exactly how many troops it adds — base × that %, no matter what else you own.
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Read the composition and the steps
The result card shows your main stack, the layer slots and the troops spent on layers, with the full working underneath so you can rebuild the same march in the game’s preset screen.
March Layering and March Size Examples
Every row is reproducible in the calculator above — layers use slots = tiers × types − 1, size uses base × (1 + %) + flat:
| Scenario | Inputs | Working | Result |
|---|---|---|---|
| T14 ranged, all 4 types | 1,000,000 march, 1k layers | 55 × 1,000 = 55,000 | 945,000 main stack (94.5%) |
| T15 mounted, no siege | 2,335,000 march, 1k layers | 44 × 1,000 = 44,000 | 2,291,000 main stack (98.1%) |
| T13 ground, all 4 types | 800,000 march, 2k layers | 51 × 2,000 = 102,000 | 698,000 main stack (87.3%) |
| March size, K45 rally spot | 860,000 base, +250%, +400,000 flat | 860,000 × 3.5 + 400,000 | 3,410,000 total |
| What-if: +15% ring | 860,000 base | 860,000 × 15% | +129,000 troops, with any other buffs |
March Size Buffs: Flat vs Percentage
Flat bonuses add fixed troops after the percentages; percentage buffs all multiply the Rally Spot base. The main sources (community-measured — values can change with game updates):
| Flat source | Adds up to |
|---|---|
| Research — Coordination / Super Coordination | +10,000 / +50,000 |
| Research — Prestige / Advanced Prestige | +50,000 / +100,000 |
| VIP level (VIP4 → VIP25) | +4,000 → +160,000 |
| Monarch gear — War Horn (Lv1 → Lv15) | +2,000 → +60,000 |
| Rank / title (Knight → Regent) | +5,000 → +100,000 |
| Citizens (blue-star bonuses) | up to +48,000 |
| Military tactics — Guerrilla (Grade 3 → 10) | +30,000 → +160,000 |
| Percentage source | Buff |
|---|---|
| Research — Advanced + Supreme Coordination | +100% each |
| General march-size skill (e.g. King Arthur, Genghis Khan) | +5% – +15% |
| March-size skill books (Lv1 → Lv4) | +3% → +12% |
| General rings (Fearless Dragon → Majestic Asura) | +11% → +15% |
| Civilization equipment sets (Augustus / Antonine / Sasanian; Freedom Hero) | +20%; +30% |
| Dragons — Celtic Demon Lv6/10/15; Amaterasu; Nidhogg | +10/15/20%; +15%; +20% |
| Spiritual beasts (green → red quality) | +3% → +26% |
| Civilization treasure — Imperial Seal (Lv1 → Lv15) | +3% → +74.5% |
| Rally Spot duty officer (junior → super) | +5% → +30% |
| Temporary items (Junior → Battlefield Super) | +50% → +300% |
