Download Time Calculator
Download time calculator: how long a file takes to download (or upload) at a given internet speed, or the speed you need.
t = 8 · SR
How to use this calculator
- Choose the quantity you want under “Solve for”.
- Type the known values and pick their units: any combination works.
- The result updates as you type. Open “Show the steps” to see the substitution.
Speeds are in megabits per second, file sizes in megabytes: time = 8 × size ÷ speed. Expect about 80 % of the advertised speed.
Formula
t = 8 · SR
| Symbol | Quantity | Units |
|---|---|---|
| S | File size | B, bit, kB, MB, GB, TB, PB, KiB, MiB, GiB, TiB, Mbit, Gbit |
| R | Connection speed | bit/s, kbit/s, Mbit/s, Gbit/s, kB/s, MB/s, GB/s, MiB/s |
| t | Download time | s, ms, µs, ns, min, h, d, wk, yr |
Worked example
Given: S = 50 GB · R = 100 Mbit/s
t = 8 SR
Result: t = 66.6667 min
Download time for different values of File size
| S · File size | t · Download time |
|---|---|
| 25 GB | 33.333 min |
| 37.5 GB | 50 min |
| 45 GB | 60 min |
| 50 GB | 66.667 min |
| 55 GB | 73.333 min |
| 62.5 GB | 83.333 min |
| 75 GB | 100 min |
| 100 GB | 133.33 min |
Other values as in the worked example.
Frequently asked questions
50 GB game at 100 Mbps?
About 67 minutes (≈ 83 min in practice).
Related calculators
- Pool Volume Calculator (Gallons & Liters)
- Aquarium Volume Calculator (Fish Tank Gallons)
- Board Foot Calculator (Lumber)
- Battery Life Calculator (mAh)
- PPI Calculator (Pixel Density)
- TV Size & Viewing Distance Calculator
- Aspect Ratio Calculator (Resize Images & Video)
- Recipe Scaler (Adjust Servings)
Last updated: · Report an error