1 兆比特 = ?字节
我总是对此感到困惑。是否有兆位到字节的“标准”转换？
是：
1 Megabit == 1,000,000 bits == 125,000 bytes
还是：
1 Megabit == 2^20 bits == 1,048,576 bits == 131,072 bytes
I always get confused about this. Is there a "standard" conversion of Megabits to bytes?
Is it:
1 Megabit == 1,000,000 bits == 125,000 bytes
Or:
1 Megabit == 2^20 bits == 1,048,576 bits == 131,072 bytes
如果你对这篇内容有疑问，欢迎到本站社区发帖提问 参与讨论，获取更多帮助，或者扫码二维码加入 Web 技术交流群。
绑定邮箱获取回复消息
由于您还没有绑定你的真实邮箱，如果其他用户或者作者回复了您的评论，将不能在第一时间通知您！
发布评论
评论（8）
兆比特是来自 TELECOM 而不是 CS 的计量单位。情况是这样的：
当它是基于 CS 的计量单位时，通常适用
1024规则：Megabits is a unit of measure that comes from TELECOM, not CS. So it is:
When it's a CS based unit of measure, usually the
1024rules apply:一个兆八位字节（仅与兆字节相同如果每个字节有八位) 是八兆位。与兆字节的转换完全相同。
一个“兆位”RAM、ROM 或闪存芯片具有 10242 兆位 (Mibit) = 1 048 576 位。
每秒 1 兆比特的互联网连接可以传输 10002 兆比特 (Mbit) = 1 000 000 比特每秒。
因此，可以应用“兆位”到“兆字节”的四种不同转换（假设每个字节确实有八位）：
One megaoctet (only the same as a megabyte if each byte has eight bits) is eight megabits. Exactly the same conversion applies as for megabytes.
A one "megabit" RAM, ROM, or flash memory chip has 10242 mebibits (Mibit) = 1 048 576 bits.
A one megabit per second Internet connection can transfer 10002 megabits (Mbit) = 1 000 000 bits per second.
So four different conversions of "megabits" to "megabytes" may apply (assuming that each byte does have eight bits):
是前者。
http://en.wikipedia.org/wiki/Megabit
It's the former.
http://en.wikipedia.org/wiki/Megabit
1 兆位 = 0.125 兆字节
google一下
好吧，我并不是想让我的回答引起如此大的骚动，但由于你们所有的评论都是有效的，我想我会回来帮助澄清一下我的声誉。
我相信整个问题的正确答案是，兆位
所以最初的问题不是哪个是正确的问题，而是它们的名称错误标签。
应该改为：
1 megabit = 0.125 megabyte
google it
Alright, I didn't mean for my answer to cause such uproar, but as all of your comments are valid, I figured I would come back to help clear up my reputation a bit.
I believe the correct answer to the whole question is that a
So the original question is not a matter of which one is correct, but that they have the wrong name to the label.
Should instead be:
Kilo 是 1.000，Mega 是任何值的 1.000.000 倍。例如千克克就是1.000克。 千赫兹是 1.000 赫兹，依此类推。
对于 Mega 来说也是如此，MegaHertz 是 1.000.000 赫兹，Megabit 是 1.000.000 位。
由于 1 字节为 8 位，因此 1.000.000 / 8 = 125.000 字节。
对于计算机来说，乘数略有变化，例如 Kilo 是 1024 倍，Mega 是 1024*1024 = 1.048.576 倍（一般以位为单位）。
在这种情况下，1 MegaBit = 1.024 * 1.024 = 1.048.576 位，以字节 1.048.576/8 = 131.072 字节表示。
Kilo is 1.000, Mega is 1.000.000 times of whatever it is. Such as Kilogram is 1.000 gram. Kilohertz is 1.000 hertz so on.
Same for Mega, MegaHertz is 1.000.000 hertz, Megabit is 1.000.000 bit.
Since 1 byte is 8 bit, then 1.000.000 / 8 = 125.000 byte.
When it comes to computer, the multiplier changes slightly, such as Kilo is 1024 times and Mega is 1024*1024 = 1.048.576 times of whatever it is (in generally bit).
In this case 1 MegaBit = 1.024 * 1.024 = 1.048.576 bits, in terms of byte 1.048.576/8 = 131.072 bytes.
虽然有人提出引入 Mebi 等作为两个单位功率的测量单位，但这种用法并不普遍或不被接受。然而，根据经验，比特最有可能用
Mega的正常定义来描述，因此1,000,000比特。While there is a movement to introduce
Mebiand the like as the measurement for the power of two units, the usage isn't universial or accepted. However, from experience, bits are most likely to be depicted with the normal definition ofMega, so1,000,000 bits.它可能因行业而异。提供 FLASH 产品的组件制造商将其产品宣传为“1Mbit”并包含“131,072 字节”。 （参考：SST 的 1 Mbit SPI 总线串行闪存 （PDF 数据表）；可索引地址 0h- 1FFFF小时)
It may vary by industry. Component manufacturers offering FLASH products advertise their products as "1Mbit" and contain "131,072 bytes". (Reference: SST's 1 Mbit SPI Bus Serial FLASH (PDF Datasheet); indexable addresses 0h-1FFFFh)
https://wiki.ubuntu.com/UnitsPolicy
单位政策。这是针对所有 2 个基本单位和 10 个基本单位的新单位策略
二进制含义在固态存储器（例如 RAM）方面更常用，
而十进制含义在数据传输速率、磁盘存储和理论计算中更常见现代学术教科书中。”
有关更多信息，请参阅
https://en.wikipedia.org /wiki/维基百科:Manual_of_Style/Dates_and_numbers#Quantities_of_bytes_and_bits
https://wiki.ubuntu.com/UnitsPolicy
UNIT POLICY. this is new unit policy for all 2 base and 10 base units
The binary meanings are more commonly used in relation to solid-state memory (such as RAM)
while the decimal meanings are more common for data transmission rates, disk storage and in theoretical calculations in modern academic textbooks."
for more innformation see
https://en.wikipedia.org/wiki/Wikipedia:Manual_of_Style/Dates_and_numbers#Quantities_of_bytes_and_bits