Data Transfer Speed Converter
Convert between Mbps, MB/s, Gbps, KB/s, and other internet speed units.
About this tool
Internet speeds are measured in different units depending on context—internet service providers often advertise speeds in Mbps (megabits per second), while file downloads typically show MB/s (megabytes per second). Understanding the relationship between these units is essential for comparing plans, diagnosing bandwidth issues, and setting realistic expectations for streaming, gaming, or large file transfers. This tool instantly converts between bits and bytes, decimal and binary scales, to help you make sense of your connection's actual performance.
Simply enter a speed value in any supported unit—Mbps, MB/s, Gbps, KB/s, Kbps, and more—and the converter displays the equivalent speeds in all other units. This is particularly useful when comparing your ISP's advertised speeds to actual download rates, planning cloud backup schedules, or checking if your connection supports 4K streaming (typically 25 Mbps or higher) or video conferencing. The conversions account for the eight-bit-to-byte relationship, so you'll see accurate results for both data rates and storage speeds.
A common source of confusion is that one megabyte (MB) equals eight megabits (Mb), meaning a "100 Mbps" connection theoretically downloads at about 12.5 MB/s once protocol overhead is accounted for. Mobile carriers, ISPs, and application vendors may use different conventions, so bookmarking this tool helps resolve disputes over speed claims and ensures your expectations align with real-world performance across home networks, mobile data, and enterprise links.
Frequently Asked Questions
Code Implementation
# Data Transfer Speed Converter
# Bits vs Bytes: 1 byte = 8 bits
def mbps_to_mbs(mbps: float) -> float:
"""Megabits/s → Megabytes/s (divide by 8)."""
return mbps / 8
def mbs_to_mbps(mbs: float) -> float:
"""Megabytes/s → Megabits/s (multiply by 8)."""
return mbs * 8
def gbps_to_tbh(gbps: float) -> float:
"""Gigabits/s → Terabytes/hour."""
# 1 Gbps = 0.125 GB/s = 0.125 * 3600 GB/h = 450 GB/h = 0.439 TB/h
gb_per_hour = gbps * 0.125 * 3600
return gb_per_hour / 1024 # Convert GB to TB
def download_time_seconds(file_size_mb: float, speed_mbps: float) -> float:
"""Calculate download time given file size (MB) and connection speed (Mbps)."""
speed_mbs = mbps_to_mbs(speed_mbps)
return file_size_mb / speed_mbs
def format_time(seconds: float) -> str:
if seconds < 60:
return f"{seconds:.1f} seconds"
elif seconds < 3600:
return f"{seconds / 60:.1f} minutes"
else:
return f"{seconds / 3600:.2f} hours"
# Examples
speed_mbps = 100 # 100 Mbps connection
print(f"{speed_mbps} Mbps = {mbps_to_mbs(speed_mbps)} MB/s")
# 100 Mbps = 12.5 MB/s
# Download time for common file sizes
files = [
("1 GB movie", 1024),
("4 GB game", 4096),
("50 GB game", 51200),
]
for name, size_mb in files:
t = download_time_seconds(size_mb, speed_mbps)
print(f" {name}: {format_time(t)}")
# 1 GB movie: 1.4 minutes
# 4 GB game: 5.5 minutes
# 50 GB game: 1.14 hoursComments & Feedback
Comments are powered by Giscus. Sign in with GitHub to leave a comment.