TikTok Cost per Subscribe: Subscription Campaign Efficiency

TikTok Cost per Subscribe measures the average spend required to generate one subscribe event from your TikTok ads.

Formula

TikTok Cost per Subscribe = TikTok Ad Spend ÷ TikTok Subscribes

Formula Components

Metric	Definition
TikTok Ad Spend	Total amount spent on TikTok advertising
TikTok Subscribes	Number of subscribe events attributed to TikTok ads

Metadata
Type	Currency
Data Source	TikTok Ads
Aggregation	Ratio

Example

A subscription box company spent $6,000 on TikTok ads in April and generated 240 new subscribers.

Month	Ad Spend	Subscribes	Cost per Subscribe
February	$4,200	140	$30.00
March	$5,000	180	$27.78
April	$6,000	240	$25.00

April’s cost per subscribe of $25.00 shows a 10% improvement from refined audience targeting.

How It Works

TikTok tracks subscribe events when users complete subscription sign-ups attributed to your ads. This metric divides total ad spend by subscribe events to show your average acquisition cost per subscriber.

When to Use

Scenario	Action
Evaluating campaigns	Compare cost per subscribe across campaigns to identify top performers
Budget planning	Calculate required spend for subscriber acquisition goals
Creative testing	A/B test ad creatives and measure impact on subscription cost
Audience optimization	Refine targeting to lower cost per subscribe

Metric	Relationship
TikTok Subscribes	Denominator—total subscribes driving this calculation
TikTok CPA	Similar efficiency metric for purchase conversions

See all TikTok Conversions metrics →

TikTok Subscribes Value TikTok Schedules

⌘I

​Formula

​Formula Components

​Example

​How It Works

​When to Use

​Related Metrics

Formula

Formula Components

Example

How It Works

When to Use

Related Metrics