# CTR Calculator

- **URL:** https://codeasystem.com/calculators/marketing/ctr-calculator/
- **Category:** marketing
- **Description:** Compute click-through rate from clicks and impressions, with clicks per thousand for quick benchmarking.
- **Primary output:** Click-through rate: 0.5%

## Inputs
- Clicks (name: `clicks`, type: number, example: 50)
- Impressions (name: `impressions`, type: number, example: 10000)

## Outputs
- Click-through rate: 0.5%
- Clicks per 1,000 impressions: 5
- Impressions served: 10,000

## Formula / methodology
```
CTR = clicks ÷ impressions × 100
```

Click-through rate divides the clicks an asset earned by the number of times it was shown. We also express it as clicks per thousand impressions, which maps directly onto CPM pricing and makes small percentages easier to compare.

## Assumptions & limitations
- Both counts cover the same period, placement and audience.
- Invalid or bot traffic is already filtered by the platform.
- Zero clicks is a legitimate result, not an error.

## How to use
1. **Pull both numbers from one report**; Use your ad platform’s totals for a single campaign or date range so the ratio is meaningful.
2. **Enter clicks and impressions**; Raw counts only; nothing to convert.
3. **Benchmark the result**; Search ads often run 3–6%; display frequently sits under 1%. Compare within your channel.

## Example
Fifty clicks on 10,000 impressions is a 0.5% CTR; five clicks for every thousand times the ad appeared.

Result for these inputs:

```
Click-through rate: 0.5%
```

## About this calculator
### What CTR actually measures

CTR measures creative resonance; does this thumbnail, headline or offer make the right people act? It says nothing about what happens after the click; a high CTR with poor conversions usually signals over-promising creative.

### Beware the low-volume trap

Two clicks on forty impressions reads as a spectacular 5%, but tiny samples swing wildly. Trust CTR comparisons only once impression counts reach the hundreds at minimum.

### CTR interacts with CPC

On auction platforms like Google Ads, higher CTR raises quality scores and lowers what you pay per click. Improving creative literally buys cheaper traffic.

## FAQs
### What is a good CTR?

It depends entirely on channel and intent: Google search ads commonly achieve 3–6%, social feed ads around 1–2%, and display banners often below 0.5%. Judge against your own historical baseline first.

### Why is my CTR falling over time?

Usually frequency fatigue; the same audience sees the same creative repeatedly. Refresh assets, expand audiences, or cap frequency to recover it.

### Does CTR include accidental clicks?

Yes, platforms count them. Mobile display in particular accumulates fat-finger clicks, which is why reviewing downstream conversion data matters.

## Related calculators
- [CPC Calculator](https://codeasystem.com/calculators/marketing/cpc-calculator/)
- [CPM Calculator](https://codeasystem.com/calculators/marketing/cpm-calculator/)
- [Conversion Rate Calculator](https://codeasystem.com/calculators/marketing/conversion-rate-calculator/)

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Last updated: 2026-08-23 · Version: 1.0.0 · [HTML version](https://codeasystem.com/calculators/marketing/ctr-calculator/)