Why I Bought Star Trek on Blu-ray Despite Streaming

I bought Star Trek on Blu-ray because streaming services offer a rotating, compressed, and often incomplete catalog, while physical discs guarantee permanent, highest-quality access to every episode and film I want, whenever I want it. This article explains the concrete reasons behind that choice—video and audio quality, ownership, bonus features, and the practical realities of streaming—so you can decide if the same logic applies to you.

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

Formula

The calculator above works out your average running or walking pace and speed. The formula for pace is:

Pace (min/km) = Total time (min) ÷ Distance (km)

And for speed:

Speed (km/h) = Distance (km) ÷ (Total time (min) ÷ 60)

Where t is the total time in minutes, d is the distance in kilometers, pace is the number of minutes per kilometer, and speed is kilometers per hour. If you measure distance in miles, convert to kilometers first (1 mile = 1.60934 km) or use the same formula with miles and get min/mile.

Worked Example

Using the default values: you finish a 10 km run in 50 minutes.

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

The calculator shows the same: 5.00 min/km and 12.00 km/h.

Why Use This Calculator

Runners, walkers, and cyclists use pace to plan training sessions, set realistic race goals, and compare efforts across different distances. A pace of 5 min/km means you cover one kilometer every five minutes; a speed of 12 km/h is the same effort expressed as distance per hour. Knowing both helps you choose the right starting speed for intervals, tempo runs, or a long-distance event.

For example, if you want to finish a half marathon (21.1 km) in under 2 hours, you need a pace faster than 120 ÷ 21.1 = 5.69 min/km. Enter 120 minutes and 21.1 km to see your required pace and speed instantly.

How to Read the Result

The first output, pace, is the number most runners quote: “I run 5-minute klicks.” The second output, speed, is useful for treadmill settings or comparing with cycling. A lower pace number means faster running; a higher speed number means faster running. If you enter a very short time and long distance, the pace may look unrealistically fast—check your units.

Common Mistakes

Mixing minutes and hours: If you enter 1.5 thinking it’s 1 hour 30 minutes, the result is wrong. Convert to minutes first: 90.
Using miles without converting: The formula expects kilometers. If your distance is in miles, multiply by 1.60934 before entering.
Confusing pace and speed: Pace is time per distance (min/km); speed is distance per time (km/h). They are reciprocals but not directly interchangeable.

Limits of the Formula

This formula gives average pace and speed, not a prediction of race performance. It ignores elevation gain, weather, fatigue, and training status. For a hilly route, your pace will vary; the average still helps you plan splits. For heart-rate zones or VO2max estimates, you need additional data from a fitness test.

Frequently Asked Questions

What is a good pace for a beginner?

A comfortable jogging pace for a beginner is often between 6 and 8 min/km (7.5–10 km/h). Walking is typically 10–12 min/km (5–6 km/h). Use the calculator to find your own comfortable pace, then aim to improve gradually.

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

Multiply the pace in min/km by 1.60934. For example, 5 min/km × 1.60934 = 8.05 min/mile. Conversely, divide min/mile by 1.60934 to get min/km.

Can I use this for treadmill running?

Yes. Set the treadmill speed in km/h and enter 60 minutes for time, then read the pace. If your treadmill shows mph, convert: 1 mph = 1.60934 km/h.

Why does the calculator show “Cannot compute”?

That appears when you enter a negative time or distance, or when the distance is zero. The formula requires positive values for time and distance.

Does pace include rest stops?

No. The total time should be your moving time, not including pauses. If you stop for water, your average pace over the whole outing will be slower than your running pace.

Method: the standard formula for this calculation, rounded as each result states. See how the calculators work or report an error.

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