Choose a solve mode to calculate cost per bit, total cost, or data amount. Enter the two supplied values; pricing is in dollars.
Related Calculators
- Cost Per Unit Calculator
- Price Per Piece Calculator
- Allocated Cost Calculator
- Total Charge Calculator
- All Business Calculators
Cost Per Bit Formula
The cost per bit is the total cost divided by the number of bits. The calculator can also rearrange the same relationship to solve for total cost or number of bits.
- CPB = cost per bit, in dollars per bit
- TC = total cost, in dollars
- B = number of bits
The data amount is converted to bits before calculation. Decimal prefixes use powers of 1,000; binary prefixes with i use powers of 1,024. One byte (B) is 8 bits. Data amount is different from transfer speed in bits per second.
- To calculate cost per bit: enter total cost and number of bits.
- To calculate total cost: enter cost per bit and number of bits.
- To calculate number of bits: enter total cost and cost per bit.
Bit Unit Conversions
Use this table to check how the selected bit unit is converted before the formula is applied.
| Unit | Abbreviation | Equivalent in Bits |
|---|---|---|
| Bit | bit | 1 bit |
| Kilobit | kbit | 1,000 bits |
| Megabit | Mbit | 1,000,000 bits |
Common Cost Per Bit Conversions
Cost per bit values are often very small. This table shows equivalent ways to read the same price.
| Cost Per Bit | Cost Per Kilobit | Cost Per Megabit |
|---|---|---|
| $0.000001/bit | $0.001/kbit | $1.00/Mbit |
| $0.00001/bit | $0.01/kbit | $10.00/Mbit |
| $0.0001/bit | $0.10/kbit | $100.00/Mbit |
Example Problems
Example 1: Calculate cost per bit
You pay $25 for 5 Mbit. First convert 5 Mbit to bits:
Then divide total cost by the number of bits:
The cost per bit is $0.000005/bit.
Example 2: Calculate total cost
You have 12,000 bits at a cost of $0.002 per bit.
The total cost is $24.00.
FAQs
What does cost per bit mean?
Cost per bit means the price assigned to one bit. It is found by dividing the total cost by the total number of bits. A lower cost per bit means each bit costs less.
Why are cost per bit values so small?
A single bit is a very small unit of data, so the price for one bit is usually a tiny decimal. For easier reading, you may also compare cost per kilobit or cost per megabit.
Should I use bits, kilobits, or megabits?
Use the unit that matches the number you have. The calculator converts kilobits and megabits into bits before calculating. For this calculator, 1 kbit equals 1,000 bits and 1 Mbit equals 1,000,000 bits.
