Mbps and MB/s are not the same unit
Internet and network speeds are commonly advertised in megabits per second (Mbit/s or Mbps). File sizes and many download displays use megabytes per second (MB/s).
Eight bits make one byte
Ignoring protocol overhead, divide a bit rate by 8 to estimate the corresponding byte rate. For example, 80 Mbit/s is approximately 10 MB/s.
Why real downloads can be slower
Protocol overhead, Wi-Fi conditions, server limits, congestion, disk speed and other factors can reduce actual file-transfer speed. The unit conversion is exact in concept, but real-world throughput often differs.
Decimal networking units
Network rate labels commonly use decimal prefixes: 1 Mbit/s = 1,000,000 bit/s. Storage tools may also present binary units in other contexts, so check the label carefully.
Use the Data Transfer Rate Converter for bit- and byte-based rates.