Ballistic Calculator

Units of Measure

Imperial Metric

Elevation Windage Units: MOA MIL

Ammunition Details

Ballistic Coefficient i G1 for most bullets. Use G7 for modern long-range bullets. G1 G7 Muzzle Velocity i Dependent on barrel length. Muzzle velocity should be verified by a chronograph. Bullet weight (grains) Bullet diameter (in) Bullet length (in)

Firearm Setup

Zero Distance i The distance at which a firearm is sighted in. Sight Height i 1.5 inches (3.8 cm) is typical for bolt-action rifles

Environment

Wind Speed Wind Direction (deg) i Examples: 90° = from right (3 o'clock), 270° = from left (9 o'clock). Max Range Range Step Altitude (ft) Temperature (°F) Pressure (inHg) Humidity (%)

Calculate Reset | Print

Trajectory table

Distance	Drop	Come-up	Wind hold	Velocity	Energy	Time	Clicks

Ballistic Calculator Report

Inputs

Trajectory chart

Trajectory table

Ballistic data is provided for informational and reference purposes only. Actual performance may vary. Always confirm your results through live-fire testing before use in the field.

What Is a Ballistic Calculator

Simple Definition

A ballistic calculator is a tool used to predict a bullet’s trajectory and determine the precise adjustments needed to hit a target at a given distance. 

It calculates how factors like gravity, air resistance, and wind affect the bullet during flight, helping shooters make accurate scope corrections.

What It Calculates (Bullet Drop, Wind Drift, MOA / MIL)

A ballistic calculator provides key data for accurate shooting, including bullet drop (how much the bullet falls over distance) and wind drift (how much the bullet is pushed sideways by wind). It converts these effects into usable adjustments, typically in MOA (Minutes of Angle) or MIL (Milliradians), allowing shooters to correctly adjust their scope for precise shot placement.

How to Use a Ballistic Calculator

Enter Your Rifle and Ammunition Data

Start by entering your rifle and ammunition details. This typically includes caliber, bullet weight, ballistic coefficient (BC), muzzle velocity, scope height, and your zero distance. The more precise this information is the more accurate your results will be.

Add Environmental Conditions (Wind, Temperature, Altitude)

Next, input the environmental conditions. Wind speed and direction have a impact on bullet path, while temperature, altitude, and air pressure affect air density and bullet velocity. Accurate environmental data helps refine your trajectory calculation for real-world conditions.

Read Your Results (MOA / MIL Adjustments)

Once all data is entered, the calculator will generate your results. These are usually displayed as elevation and windage adjustments in MOA or MIL. Use these values to adjust your scope, allowing you to compensate for bullet drop and wind drift and achieve precise shot placement.

Understanding Your Results

Bullet Drop Explained

Bullet drop refers to how much the bullet falls as it travels toward the target due to gravity. Even when zeroed, a bullet begins to drop immediately after leaving the barrel. The farther the distance, the more pronounced the drop becomes. A ballistic calculator shows this drop and converts it into an elevation adjustment so you can compensate using your scope.

Wind Drift Explained

Wind drift is the horizontal movement of the bullet caused by wind during its flight. The effect increases with distance, wind speed, and time in flight. A ballistic calculator estimates how far the bullet will be pushed left or right and provides a windage adjustment to help you stay on target.

MOA vs MIL Explained

MOA (Minutes of Angle) and MIL (Milliradians) are units used to adjust your scope. They both represent angular measurements that translate into movement on the target. MOA adjustments are typically in smaller increments, while MIL is based on a metric system and often used in tactical shooting. A ballistic calculator provides corrections in one of these units so you can dial or hold accurately with your optic.

Tips for Accurate Results

Use Real Muzzle Velocity

Using your rifle’s actual muzzle velocity is critical for accurate results. Factory ammunition data can vary from real-world performance, so measuring velocity with a chronograph provides much more reliable inputs. Even small differences in velocity can significantly affect bullet drop and overall trajectory at longer distances.

Update Weather and Shooting Conditions

Environmental conditions change constantly and have a direct impact on bullet performance. Always update inputs like wind speed, temperature, and altitude before shooting. Accurate, real-time conditions allow the ballistic calculator to produce results that better reflect what the bullet will actually do in the field.

FAQ

How Accurate Is a Ballistic Calculator

A ballistic calculator can be accurate when provided with correct inputs. Factors like real muzzle velocity, precise ballistic coefficient, and current environmental conditions all play a major role.

However, it remains a predictive tool, calculator outputs are for educational and reference purposes only. Results should always be confirmed through real-world shooting.

Do I Need a Ballistic Calculator for Hunting

A ballistic calculator is not strictly required for hunting at shorter distances, but it becomes extremely useful as range increases. It helps ensure precise shot placement and reduces guesswork, especially in varying environmental conditions.

What Is Ballistic Coefficient

Ballistic coefficient (BC) measures how efficiently a bullet travels through the air. A higher BC means the bullet retains velocity better and is less affected by wind and drag. This value is 

Try Our Ballistic Calculator

Use our ballistic calculator to quickly determine your bullet trajectory and required scope adjustments. Enter your ammunition, rifle and environmental data to generate MOA or MIL corrections in seconds. If you're preparing for the range or heading into the field, this tool can help you make more informed shots.