.fps-calc-container { background: #f9f9f9; padding: 20px; border-radius: 8px; margin-bottom: 30px; }
.fps-calc-field { margin-bottom: 20px; }
.fps-calc-field label { display: block; font-weight: 600; margin-bottom: 8px; color: #2c3e50; }
.fps-calc-field input { width: 100%; padding: 12px; border: 2px solid #ddd; border-radius: 6px; font-size: 16px; box-sizing: border-box; transition: border-color 0.3s; }
.fps-calc-field input:focus { border-color: #3498db; outline: none; }
.fps-calc-btn { background-color: #3498db; color: white; border: none; padding: 15px 25px; border-radius: 6px; cursor: pointer; font-size: 18px; font-weight: bold; width: 100%; transition: background-color 0.3s; }
.fps-calc-btn:hover { background-color: #2980b9; }
.fps-result-box { margin-top: 25px; padding: 20px; border-radius: 8px; background-color: #e8f4fd; display: none; border-left: 5px solid #3498db; }
.fps-result-value { font-size: 24px; font-weight: 800; color: #2c3e50; margin: 10px 0; }
.fps-status { font-weight: bold; padding: 4px 8px; border-radius: 4px; }
.status-low { color: #e74c3c; }
.status-mid { color: #f39c12; }
.status-high { color: #27ae60; }
.article-content h2 { color: #2c3e50; margin-top: 30px; font-size: 24px; border-bottom: 2px solid #eee; padding-bottom: 10px; }
.article-content h3 { color: #34495e; margin-top: 20px; }
.fps-table { width: 100%; border-collapse: collapse; margin: 20px 0; }
.fps-table th, .fps-table td { border: 1px solid #ddd; padding: 12px; text-align: left; }
.fps-table th { background-color: #f2f2f2; }
function calculateFPS() {
var frames = parseFloat(document.getElementById('numFrames').value);
var seconds = parseFloat(document.getElementById('timeElapsed').value);
var hz = parseFloat(document.getElementById('monitorHz').value);
var resultsDiv = document.getElementById('fpsResults');
if (isNaN(frames) || isNaN(seconds) || seconds <= 0 || frames < 0) {
alert("Please enter valid positive numbers for frames and time.");
return;
}
var fps = frames / seconds;
var frameTime = 1000 / fps;
var fpsDisplay = document.getElementById('mainFPS');
var frameTimeDisplay = document.getElementById('frameTime');
var monitorDisplay = document.getElementById('monitorCheck');
var perfSummary = document.getElementById('perfSummary');
resultsDiv.style.display = 'block';
fpsDisplay.innerHTML = "Result: " + fps.toFixed(2) + " FPS";
frameTimeDisplay.innerHTML = "Average Frame Time: " + frameTime.toFixed(2) + " ms";
var statusClass = "";
var statusText = "";
if (fps < 30) {
statusClass = "status-low";
statusText = "Low Performance";
} else if (fps < 60) {
statusClass = "status-mid";
statusText = "Playable Performance";
} else {
statusClass = "status-high";
statusText = "High Performance";
}
perfSummary.innerHTML = "Rating: " + statusText + "";
if (!isNaN(hz) && hz > 0) {
if (fps > hz) {
monitorDisplay.innerHTML = "Monitor Bottleneck: Your PC is faster than your screen (" + hz + "Hz). You are losing " + (fps – hz).toFixed(0) + " frames per second that your monitor cannot display.";
monitorDisplay.style.color = "#f39c12";
} else if (fps < hz) {
monitorDisplay.innerHTML = "Hardware Limited: Your monitor supports " + hz + "Hz, but your hardware is only delivering " + fps.toFixed(0) + " FPS.";
monitorDisplay.style.color = "#e74c3c";
} else {
monitorDisplay.innerHTML = "Perfect Match: Your FPS perfectly matches your monitor's " + hz + "Hz refresh rate.";
monitorDisplay.style.color = "#27ae60";
}
} else {
monitorDisplay.innerHTML = "";
}
resultsDiv.scrollIntoView({ behavior: 'smooth', block: 'nearest' });
}
FPS & Frame Time Calculator
Measure gaming performance, render speeds, and hardware efficiency.
Understanding Frames Per Second (FPS)
Frames Per Second (FPS) is the primary metric used to measure the performance of a video game, animation, or video stream. It represents how many distinct images a graphics processing unit (GPU) can produce and display every second. A higher FPS results in smoother motion, while lower FPS can lead to "choppy" or "laggy" visuals.
The Importance of Frame Time
While FPS is an average, Frame Time (measured in milliseconds) tells you exactly how long each frame takes to render. Consistency is key here. If your FPS is high but your frame times are inconsistent, you will experience "stuttering," which can be detrimental in competitive gaming environments.
FPS Performance Brackets
| FPS Range | Experience Level | Typical Usage |
|---|---|---|
| 24 – 30 FPS | Cinematic / Basic | Movies, older consoles, non-action games. |
| 60 FPS | Standard Smooth | The modern standard for smooth, playable gaming. |
| 120 – 144 FPS | High Performance | Competitive eSports, fast-paced shooters. |
| 240+ FPS | Elite / Professional | Ultra-high-end hardware for professional play. |
Common Factors Affecting Your FPS
- GPU Power: The graphics card is the primary driver of frame rendering.
- CPU Bottleneck: If your processor can't send data to the GPU fast enough, FPS will drop.
- RAM Speed: Faster memory helps assets load quickly during high-speed movement.
- Game Optimization: How well the software utilizes the hardware.
- Thermal Throttling: Overheating hardware will automatically slow down to prevent damage.
FPS Calculation Example
If your PC renders 9,000 frames over the course of a 60-second benchmark, the calculation would be:
FPS = Total Frames / Total Seconds
FPS = 9,000 / 60 = 150 FPS
To find the Frame Time for this scenario:
Frame Time = 1000 / FPS
Frame Time = 1000 / 150 = 6.67 ms