Download Time کا حساب کیسے لگائیں
Download Time کیا ہے؟
Download time depends on file size (bits) divided by connection speed (bits per second). Note that file sizes are measured in bytes while speeds are in bits — there are 8 bits per byte.
فارمولا
Time(sec) = File size(bits) ÷ Speed(bps) = File size(bytes) × 8 ÷ Speed(bps)
- t
- Download Time (seconds)
- S
- File Size (bytes)
- b
- Connection Speed (bps)
مرحلہ وار گائیڈ
- 1File size in bits = File size (bytes) × 8
- 2Download time (seconds) = File size (bits) ÷ Speed (bps)
- 31 GB = 8 Gigabits; at 100 Mbps: 80 seconds
- 4Real-world speeds are typically 60–80% of advertised speeds
حل شدہ مثالیں
ان پٹ
4 GB file on 100 Mbps connection
نتیجہ
≈5.3 minutes (320 seconds)
ان پٹ
4 GB file on 1 Gbps connection
نتیجہ
≈32 seconds
اکثر پوچھے جانے والے سوالات
Why use bits instead of bytes?
Internet speeds are measured in bits per second because modems transmit one bit at a time. Files are measured in bytes (8 bits) for storage.
Why is my download slower than advertised?
Advertised speeds are maximums. Real-world speeds are 60–80% due to latency, packet loss, router overhead, and network congestion.
What does 1 Gbps mean in practical terms?
1 Gbps = 125 MB/s theoretical. With 80% efficiency, expect ≈100 MB/s, or about 10 seconds per gigabyte.
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