Path of Exile Aura Calculator

Add aura gems, reservation modifiers, supports, and pools. Review remaining mana, reserved life, and warnings. Export your planned setup for faster build testing today.

Calculator Inputs

Aura Rows

Use Aura Name Type Value Pool Row Multiplier % Row Efficiency %

Example Data Table

Aura Type Value Pool Example Use
Determination Percent 50 Mana Armour defense setup
Grace Percent 50 Mana Evasion defense setup
Precision Flat 186 Mana Accuracy and critical chance planning
Vitality Flat 233 Life Life reserved support test

Formula Used

Percent aura base reservation = selected pool total × aura percent ÷ 100. Flat aura base reservation = entered flat reservation value.

Total efficiency = global efficiency + pool efficiency + row efficiency. Final reservation = base reservation × global support multiplier × row multiplier × less reservation factor ÷ efficiency factor.

Efficiency factor = 1 + total efficiency ÷ 100. Less reservation factor = 1 − less reservation percent ÷ 100. The selected rounding mode is applied after this calculation.

How To Use This Calculator

Enter your total mana and life. Add your global reservation efficiency. Add extra efficiency for mana or life if your setup uses pool specific effects.

Enable each aura row you want to test. Choose percent for normal reservation auras. Choose flat for skills such as Precision, Clarity, and Vitality. Select the pool used by each aura.

Use row multiplier for item or support changes on one aura. Use global support multiplier when the same multiplier affects the whole setup. Press calculate to see reserved totals and warnings.

Aura Planning Basics

Aura planning matters because reservation decides how many skills can stay active. A character may reserve mana, life, or both. This calculator helps compare those pools before you change gear. Enter each aura with a percent cost or a flat cost. Then add reservation efficiency, less reservation, and support multipliers. The result shows reserved amounts, remaining pool, and clear warnings.

What This Tool Measures

The tool estimates final reservation after common modifiers. Percent auras use the chosen pool as the base. Flat auras use their entered value. Efficiency reduces the final reservation. Support multipliers raise or lower the cost. Less reservation applies after multipliers. Rounding can be changed, because builds often need conservative values near the limit. When remaining mana or life falls below your buffer, the calculator marks the setup as risky.

Why Advanced Inputs Help

Builds can stack many modifiers. Some items move auras to life. Some supports change the cost. Some characters use very small free mana totals for attacks, movement, or guard skills. A simple yes or no check is not enough. This page shows each aura line, the adjusted cost, the pool used, and the combined reservation. You can test several versions fast. You can also export the result for notes, build guides, or team planning.

Good Ways To Use Results

Start with your main damage aura. Add defensive auras next. Then add utility skills such as Precision, Clarity, Vitality, Heralds, or banners. Keep a practical safety buffer. Channeling skills, trigger costs, curses, and movement skills may need extra mana. If the setup fails, try more efficiency, remove one aura, lower a flat aura level, or move an aura to another pool. The numbers are estimates, so always confirm inside the game. Still, the calculator gives a useful planning path before expensive changes.

Practical Build Notes

Treat every imported value as a planning estimate. Patch changes, item wording, and gem choices can affect a real character. Use the notes field to record a passive tree, gear swap, or league idea. Run one test with strict rounding. Run another with no rounding. The difference shows how close your setup is to failure. Close setups deserve extra testing before trading expensive items in practice.

FAQs

What does this aura calculator do?

It estimates how much mana or life your active aura setup reserves. It also shows remaining pool values, percentage use, and warnings.

Does it match every in-game result exactly?

No. It is a planning estimator. In-game wording, item interactions, gem changes, and rounding can affect final values.

What is reservation efficiency?

Reservation efficiency reduces the final reservation cost. Higher efficiency lets you fit more auras into the same mana or life pool.

When should I choose percent reservation?

Choose percent when an aura reserves a percentage of mana or life. Enter the listed percentage as the aura value.

When should I choose flat reservation?

Choose flat when the skill reserves a fixed number. Precision, Clarity, and Vitality are common examples at many gem levels.

What is row multiplier?

Row multiplier adjusts one aura only. Use it for a support, item, or special setup that changes a single aura cost.

Why use a mana safety buffer?

A safety buffer keeps mana available for attacks, movement, guards, curses, triggers, or mistakes. Very low free mana can feel bad.

Can I export my aura setup?

Yes. Use the CSV button for spreadsheet notes. Use the PDF button for a simple report with your calculated results.

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Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.