Camera Exposure Calculator – Find the Perfect Aperture, Shutter Speed & ISO

Get perfectly exposed photos every time with our Camera Exposure Calculator. Input your current exposure settings to calculate EV and find equivalent exposures — ideal for photographers learning manual mode.

Aperture

Shutter Speed

ISO

Target EV (optional)

Sunny 16 rule: EV 15 in bright sun

Exposure Analysis

Select settings and click Calculate to see exposure analysis

Exposure Triangle

Aperture: Controls depth of field and light
Shutter Speed: Controls motion blur and light
ISO: Controls sensor sensitivity and noise
EV: Combined exposure value

Sunny 16 Rule: On a sunny day, use f/16 and shutter speed = 1/ISO for correct exposure.

How to Use the Camera Exposure Calculator

Enter Your Settings

Input your current aperture (f-stop), shutter speed, and ISO values from your camera.

Calculate Exposure Value

Click Calculate to determine your EV (Exposure Value) and see how it compares to ideal exposure.

Review Recommendations

Get equivalent exposure settings and expert recommendations for perfect photos every time.

Key Features of This Exposure Calculator

📷 Exposure Value (EV) Calculation

Instantly calculate the Exposure Value for any combination of aperture, shutter speed, and ISO to understand your exposure at a glance.

🔄 Equivalent Settings Finder

Discover alternative settings that produce the same exposure, giving you creative flexibility with depth of field and motion blur.

💡 Lighting Condition Analysis

Automatically identifies the lighting scenario (bright sun, overcast, twilight) based on your calculated EV.

📚 Learn the Exposure Triangle

Understand how aperture, shutter speed, and ISO work together with built-in explanations and the Sunny 16 rule reference.

Photography Exposure FAQs

What is exposure value (EV) in photography?

Exposure Value (EV) is a number that represents all combinations of aperture and shutter speed that give the same exposure. EV 0 equals 1 second at f/1.0. Each increase of 1 EV doubles the light reaching the sensor.

What is the Sunny 16 rule?

The Sunny 16 rule states that on a sunny day, set your aperture to f/16 and your shutter speed to 1/ISO for correct exposure. For example, at ISO 100, use f/16 at 1/100 second.

How do I find equivalent exposures?

To maintain the same exposure while changing settings: opening aperture by 1 stop requires doubling shutter speed or halving ISO. This calculator shows equivalent settings automatically.

What EV value should I aim for?

EV depends on lighting: bright sun is around EV 15, overcast is EV 11-13, open shade is EV 9-11, and twilight can be EV 3-7. Match your target EV to your lighting conditions.

Why are my photos too dark or too bright?

Underexposure (dark) means not enough light reached the sensor. Overexposure (bright) means too much light. Use this calculator to find the right balance of aperture, shutter speed, and ISO.

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