CCA to CA Calculator
Convert Cold Cranking Amps (CCA) measured at 0°F to Cranking Amps (CA) measured at 32°F instantly using the standard 1.25 industry conversion factor.
CCA to CA Calculator
How to Use CCA to CA Calculator
Our tool makes it simple to find the Cranking Amps (CA) equivalent of any Cold Cranking Amps (CCA) rating. Follow these steps:
- 1Enter battery CCA value. Input the Cold Cranking Amps rating found on your battery label.
- 2Select decimal precision. Choose the number of decimal places for your output (default is 0).
- 3Click Calculate. The calculator will instantly process the conversion.
- 4Read CA output. View the calculated Cranking Amps value.
- 5Compare. Use value for battery comparison.
How to Calculate CCA to CA
To manually calculate Cranking Amps (CA) from Cold Cranking Amps (CCA), you must account for the difference in testing temperatures. Since batteries output roughly 25% more current at 32°F (CA) compared to 0°F (CCA), the conversion formula is:
Where:
- CA = Cranking Amps
- CCA = Cold Cranking Amps
Conversion Example:
If you have an automotive battery rated at 700 CCA and need to find its CA rating.
Given:
CCA = 700
Step 1:
CA = 700 × 1.25
Step 2:
CA = 875
Final Answer:
700 CCA = 875 CA
CCA to CA Chart
Values are approximate based on the industry rule that CA ratings are about 25% higher than CCA ratings.
| CCA | CA |
|---|---|
| 200 CCA | 250 CA |
| 300 CCA | 375 CA |
| 400 CCA | 500 CA |
| 500 CCA | 625 CA |
| 600 CCA | 750 CA |
| 700 CCA | 875 CA |
| 800 CCA | 1000 CA |
| 900 CCA | 1125 CA |
| 1000 CCA | 1250 CA |
| 1200 CCA | 1500 CA |
CCA to CA Frequently Asked Questions
Cold Cranking Amps (CCA) measures a battery's ability to start an engine in cold temperatures (0°F), while Cranking Amps (CA) measures starting power at a warmer temperature (32°F). Typically, the CA rating is always higher than the CCA rating for the exact same car or marine battery.
To convert CCA to CA, you generally multiply the CCA value by 1.25. This is because a battery can produce more current at 32°F than it can at 0°F. For example, a battery rated at 600 CCA will typically have a CA rating of around 750 CA, providing more starting power in milder conditions.
CA stands for Cranking Amps. It represents the amount of electrical current, measured in amperes, that a new, fully charged lead-acid battery can deliver for 30 seconds at 32 degrees Fahrenheit while maintaining a voltage of at least 7.2 volts for a 12-volt battery system.
CCA is generally more important if you live in a cold climate where temperatures drop below freezing, as it indicates the battery's cold-weather performance. If you live in a warm climate, CA might be a more relevant metric, but most experts still recommend looking primarily at the CCA rating.
Yes, you can safely use a battery with a higher CCA rating than your vehicle's manufacturer requires. A higher CCA simply means the battery has more starting power available, which can be beneficial in extreme cold or if your vehicle has additional high-draw electrical accessories installed.