Hourly Weather Forecast iOS 5 iPhone iPod touch
- Average speed
- km/h
- Result
- Finish time
- 50 min
- You entered
- Distance
- 10 km
- You entered
To get an hourly weather forecast on an iPhone or iPod touch running iOS 5, you can use the built-in Weather app, which shows a 12-hour forecast by default, or install a third-party weather app from the App Store that offers more detailed hourly data. The built-in app doesn’t have a dedicated hourly view, but you can tap the hourly row at the bottom of the screen to see the next 12 hours in a scrollable list. For a true 24-hour or multi-day hourly forecast, you’ll need a third-party app like WeatherPro, AccuWeather, or The Weather Channel, which were all compatible with iOS 5 at the time.
Formula
The calculator works out your average pace and speed for a run, walk, or cycle. You enter the finish time in minutes and the distance in kilometers. The average pace is the time taken per kilometer, calculated as:
pace (min/km) = finish time (min) ÷ distance (km)
The average speed is the distance divided by the time in hours, calculated as:
speed (km/h) = distance (km) ÷ (finish time (min) ÷ 60)
Where:
- Finish time (t) – the total time taken, in minutes.
- Distance (d) – the total distance covered, in kilometers.
- Pace – the result in minutes per kilometer (min/km).
- Speed – the result in kilometers per hour (km/h).
Worked Example
Using the default values from the calculator: finish time = 50 minutes, distance = 10 km.
Step 1: Calculate the pace.
pace = 50 ÷ 10 = 5.00 min/km
Step 2: Calculate the speed.
speed = 10 ÷ (50 ÷ 60) = 10 ÷ 0.8333 = 12.00 km/h
So the average pace is 5.00 min/km and the average speed is 12.00 km/h.
When to Use This Calculator
Use this calculator when you want to know your average pace for a training run, to compare different runs, or to plan a target pace for a race. It’s also useful for walkers, hikers, and cyclists who want to estimate how long a known distance will take. For example, if you plan to walk 5 km and you usually walk at 8 min/km, you can estimate the finish time by multiplying 5 × 8 = 40 minutes. This calculator gives you the reverse: given a time and distance, it tells you your pace and speed.
How to Read the Result
The pace is shown in minutes per kilometer. A lower pace means faster. For example, 4.5 min/km is faster than 6.0 min/km. The speed is shown in kilometers per hour. A higher speed means faster. For runners, pace is more common; for cyclists and drivers, speed is more common. If you use miles, you can convert: 1 mile = 1.60934 km. To get pace in min/mile, multiply the min/km by 1.60934. To get speed in mph, divide the km/h by 1.60934.
Common Mistakes
- Mixing units: If you enter distance in miles and time in minutes, the pace will be in min/mile, but the calculator assumes kilometers. Always convert to kilometers first.
- Using seconds: If you enter time in seconds, the result will be wrong. Convert seconds to minutes by dividing by 60.
- Rounding too early: Round only the final answer, not intermediate steps, to avoid small errors.
- Confusing pace and speed: Pace is time per distance, speed is distance per time. They are inversely related.
Limitations of the Formula
This formula gives an average pace and speed over the whole distance. It does not account for stops, changes in terrain, or variations in effort. If you stop for a traffic light or to tie a shoe, the average pace will be slower than your moving pace. For interval training, you may want to calculate pace for each segment separately. The calculator assumes a constant pace, which is rarely the case in real life, but it’s still a useful planning tool.
Frequently Asked Questions
How do I convert my pace to miles per hour?
To convert pace from min/km to mph, first convert pace to km/h (60 ÷ pace), then divide by 1.60934. For example, a 5 min/km pace is 12 km/h, which is 12 ÷ 1.60934 = 7.46 mph.
What is a good running pace for a beginner?
A comfortable conversational pace for a beginner is often around 7 to 9 min/km (about 6.7 to 8.6 km/h). This varies widely with age, fitness, and terrain. The best pace is one you can maintain without excessive fatigue.
Can I use this for cycling?
Yes, the same formula works for any activity where you cover a distance in a time. For cycling, speeds are typically higher, so pace in min/km is less intuitive. Most cyclists use km/h directly.
How do I calculate my finish time if I know my pace and distance?
Multiply the pace (min/km) by the distance (km) to get the time in minutes. For example, a 6 min/km pace over 10 km gives 60 minutes. You can then convert to hours and minutes.
What is the difference between average pace and moving pace?
Average pace includes all time elapsed, including stops. Moving pace only counts time when you are actually moving. Most GPS watches show both. This calculator gives average pace, as it uses total finish time.