Foxhole Artillery Calculator – Precision Arty Tool


Foxhole Arty Calculator

Your essential tool for precision artillery strikes in Foxhole. This foxhole arty calculator provides accurate firing solutions to ensure your shells land on target every time.



Select the type of cannon you are firing.


Distance from the spotter to your artillery piece.


Bearing from the spotter to your artillery piece.


Distance from the spotter to the enemy target.


Bearing from the spotter to the enemy target.


Current wind speed. Check flags or wind socks.


Direction the wind is blowing FROM (0-360).


Enter values to calculate
Raw Distance: — |
Raw Azimuth: — |
Wind Correction: —

Firing Solution Visualizer

Visual representation of artillery, target, and wind vectors.

What is a Foxhole Arty Calculator?

A foxhole arty calculator is a crucial tool used by players of the MMO game Foxhole to accurately fire artillery pieces like the 120mm, 150mm, and 300mm cannons. In Foxhole, artillery shells are affected by factors like distance and wind, making direct aiming impossible. This calculator takes inputs from a forward spotter—who measures distance and azimuth to both the artillery and the target—and computes the correct firing solution (final range and azimuth) needed to hit the enemy. Using a calculator removes guesswork, conserves valuable shells, and maximizes the effectiveness of an artillery barrage.

Foxhole Arty Calculator Formula and Explanation

The calculation is based on trigonometry and vector addition to determine the target’s position relative to the artillery, and then adjusting for wind. A reliable foxhole arty calculator must perform these steps precisely.

Core Formula Steps:

  1. Convert Polar to Cartesian Coordinates: The spotter’s measurements (distance, azimuth) for both the artillery and the target are converted into X, Y coordinates.
  2. Calculate Arty-to-Target Vector: The calculator finds the direct distance and azimuth from the artillery position to the target position using the Pythagorean theorem and the `atan2` function.
  3. Calculate Wind Offset: The wind’s speed and direction are used to calculate how many meters it will push the shell off-course. This offset is dependent on the shell’s travel time (which is related to distance).
  4. Apply Wind Correction: The wind offset vector is applied to the target’s coordinates, creating a new “adjusted target” point. The final firing solution is the distance and azimuth to this adjusted point.
Key Variables in Artillery Calculation
Variable Meaning Unit Typical Range
Spotter-Arty Distance The distance from the forward observer to the friendly artillery piece. meters (m) 50 – 200m
Spotter-Arty Azimuth The compass bearing from the observer to the friendly artillery piece. degrees (°) 0 – 359°
Spotter-Target Distance The distance from the forward observer to the enemy target. meters (m) 50 – 150m (Binoculars)
Spotter-Target Azimuth The compass bearing from the observer to the enemy target. degrees (°) 0 – 359°
Wind Speed The velocity of the wind affecting the shell’s trajectory. meters/sec (m/s) 0 – 15 m/s
Wind Direction The compass direction the wind is blowing FROM. degrees (°) 0 – 359°

For more details, see this advanced artillery guide.

Practical Examples

Example 1: Standard Engagement

An artillery crew is using a 120mm cannon and needs to hit a fortified bunker.

  • Inputs:
    • Spotter to Arty: 100m, 180°
    • Spotter to Target: 125m, 90°
    • Wind: 8 m/s, blowing from 270° (a crosswind from the west)
  • Results: The calculator processes the vectors and determines the target is roughly northeast of the artillery. It then calculates that the westerly wind will push the shell east, requiring a slight decrease in the firing azimuth. The final output would be a precise distance and azimuth for the gunner to set.

Example 2: Long Range with Headwind

A 150mm gun crew is targeting a distant enemy encampment.

  • Inputs:
    • Spotter to Arty: 150m, 270°
    • Spotter to Target: 140m, 0°
    • Wind: 10 m/s, blowing from 0° (a direct headwind)
  • Results: The calculator first determines the raw distance and bearing to the target. Because of the strong headwind, the shell’s range will be significantly reduced. The calculator compensates by adding meters to the firing range, ensuring the shell has enough power to overcome the wind and reach the target. Check out the differences between 120mm vs 150mm artillery to understand shell types.

How to Use This Foxhole Arty Calculator

Using this calculator is a straightforward process involving a spotter and a gun crew.

  1. Get in Position: A spotter moves to a forward position where they can see both the target and the friendly artillery’s location.
  2. Measure to Arty: The spotter uses their binoculars to measure the distance (m) and azimuth (°) to the allied artillery piece and enters it into the “Spotter to Arty” fields.
  3. Measure to Target: Without moving, the spotter measures the distance and azimuth to the enemy target and enters it into the “Spotter to Target” fields.
  4. Check the Wind: Observe a flag or wind sock to determine wind direction and strength. Enter these values.
  5. Calculate: Press the “Calculate Firing Solution” button.
  6. Relay and Fire: The spotter communicates the final “Set Range” and “Set Azimuth” from the calculator’s results to the gun crew, who adjust their cannon and fire.

Key Factors That Affect Foxhole Artillery

Accuracy of the Spotter
The entire calculation depends on the spotter’s measurements. Even a small error in distance or azimuth can cause a miss of dozens of meters.
Wind Changes
Wind in Foxhole can change direction and speed frequently. A firing solution calculated one minute may be inaccurate the next. Always re-check the wind.
Artillery Type
Different cannons (120mm, 150mm) have different shell characteristics and maximum ranges, affecting how much wind influences their trajectory.
Distance to Target
The farther the shell travels, the more time the wind has to act on it. The wind’s effect is magnified at longer ranges.
Shell Dispersion
Artillery has inherent inaccuracy (or “spread”) that increases with range. Even with a perfect calculation, shells will land in a small radius around the target point.
Communication
Clear and quick communication between the spotter and the gun line is essential. Mishearing a number leads to wasted shells.

For more tips, read about our combat strategy guide.

Frequently Asked Questions (FAQ)

Why did my shell miss even with a calculator?

The most common reasons are an inaccurate spotter measurement, a change in wind after the calculation, or simple RNG (shell dispersion). Double-check your numbers and the wind before firing.

How do I find the wind direction and speed?

Look at any flag on a structure (like a watchtower) or a deployed Wind Sock. The direction it points is the direction the wind is blowing TO. The speed of the flag’s animation indicates the wind’s strength.

What is Azimuth?

Azimuth is the direction on a compass, measured in degrees from 0 to 359. North is 0°, East is 90°, South is 180°, and West is 270°.

Does elevation matter for artillery?

While there are slight elevation differences in Foxhole, most artillery calculators, including this one, assume a flat battlefield. The effect of elevation is generally minor compared to the impact of wind and distance.

Is a foxhole arty calculator considered cheating?

No. Using external artillery calculators is a standard and accepted practice in the Foxhole community, considered part of the skill and teamwork required for effective artillery operations.

How is this better than a map-based tool?

While map tools are excellent for planning, this type of calculator is designed for rapid, in-the-field calculations based on a live spotter’s view, which is often faster and more adaptable to changing front lines. Explore map tools with this map guide.

What’s the difference between 120mm and 150mm artillery?

Generally, 120mm is cheaper and faster to fire, used against infantry and lighter structures. 150mm shells deal significantly more damage and are preferred for destroying heavily fortified concrete defenses.

What does “Fire for Effect” (FFE) mean?

This is a command given by a spotter after the first few ranging shots have been dialed in. It signals the entire artillery battery to fire a continuous barrage on the confirmed target coordinates.

Related Tools and Internal Resources

Enhance your strategic capabilities with these guides and tools:

© 2026 Foxhole Arty Calculator. This is a fan-made tool and is not affiliated with Siege Camp. All game assets and trademarks are the property of their respective owners.



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