Why Headphones Sound Quiet? Causes & Fixes

Headphones sound quiet when the audio signal reaching the drivers is too weak, the drivers themselves are inefficient, or something in the chain (source, cable, or ear fit) is attenuating the sound. The most common causes are low device volume, a poor seal in in-ear models, or a high-impedance headphone paired with a low-power source. Below, we break down every major reason and what you can do about it.

Formula

The calculator above works out your average pace and speed from a finish time and distance. The formulas are:

• Pace (min/km) = Finish time (minutes) ÷ Distance (km)
• Speed (km/h) = Distance (km) ÷ (Finish time (minutes) ÷ 60)

Where t is the finish time in minutes, d is the distance in kilometers, pace is in minutes per kilometer, and speed is in kilometers per hour. The pace output is the headline answer because that is what most runners want to know.

Worked Example

Using the default values: finish time = 50 minutes, distance = 10 km.

1. Pace = 50 ÷ 10 = 5.00 min/km
2. Speed = 10 ÷ (50 ÷ 60) = 10 ÷ 0.8333 = 12.00 km/h

The calculator shows 5.00 min/km and 12.00 km/h, matching the worked example exactly.

When to Use This Calculator

Use this tool when you have finished a run, ride, or walk and want to know your average pace or speed. It is also useful for planning: if you want to finish a 10 km race in 50 minutes, you now know you need to hold 5:00 min/km. The same math works for any distance and time — just enter your own numbers.

How to Read the Result

The pace tells you how many minutes each kilometer takes. A lower pace means faster running. Speed tells you how many kilometers you cover in one hour. For most runners, pace is the more intuitive metric because it relates directly to effort per distance. If you train on a treadmill that shows speed in km/h, you can convert your pace to speed using this same formula.

Common Mistakes

• Mixing units: If you enter distance in miles but want pace in min/km, the result will be wrong. Convert miles to kilometers first (1 mile = 1.60934 km).
• Using seconds instead of minutes: The formula expects time in minutes. If you have 50 minutes and 30 seconds, enter 50.5, not 50.30.
• Rounding too early: Round only the final answer, not intermediate steps, to avoid small errors.

Limitations of the Formula

This calculation assumes a constant pace throughout the entire distance. In reality, most runs have hills, stops, and variations in effort, so your actual pace at any given moment will differ. The result is an average, not a real-time measure. It also does not account for elevation gain, terrain, or wind, which can make the same pace feel much harder on different days.

Frequently Asked Questions

What is a good running pace for a beginner?

A comfortable conversational pace for a beginner is often around 6:30 to 8:00 min/km (about 7.5 to 9.5 km/h). This depends heavily on age, fitness, and prior activity. The best pace is one you can sustain while still talking in short sentences.

How do I convert pace from min/km to min/mile?

Multiply the pace in min/km by 1.60934 to get min/mile. For example, 5:00 min/km × 1.60934 = 8:03 min/mile. Or use the speed in km/h and divide by 1.60934 to get miles per hour.

Is it better to train by pace or by heart rate?

Both are useful. Pace is great for steady, flat runs where you want a consistent effort. Heart rate is better on hilly routes or in heat, where the same pace can push your effort too high. Many runners use pace for tempo runs and heart rate for easy days.

Why does my GPS watch show a different pace than this calculator?

GPS watches calculate pace in real time using your current position, which can be affected by satellite drift, tall buildings, or trees. They also use moving time versus elapsed time. This calculator gives a simple average over the total time you entered, which is often slightly slower than a watch’s moving pace.

Can I use this for cycling or walking?

Yes, the math is the same for any distance-based activity. Just enter your total time and distance for a bike ride or a walk, and you will get the average pace and speed. For cycling, speed in km/h is usually the more common metric.

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in t | Finish time | min | 50 | 0
in d | Distance | km | 10 | 0 | 100000
out pace | Average pace | min/km | t / d | 2
out speed | Average speed | km/h | d / (t / 60) | 2