outputmath LUFS measures perceived program loudness, while true peak estimates the highest reconstructed signal level. This guide explains how to calculate loudness adjustments, predict true peak, preserve headroom, and work with common streaming, podcast, and broadcast targets. What Does LUFS Measure? LUFS measures program loudness relative to digital full scale. It is designed to provide a … Read more
Audio file size depends on bitrate and duration for compressed formats, or sample rate, bit depth, channels, and duration for uncompressed PCM audio. This guide explains each formula with practical examples for podcasts, music, audiobooks, WAV files, and storage planning. Audio File Size Formulas at a Glance Audio file size depends on whether the audio … Read more
Ad frequency shows how often an advertisement is displayed to each reached person on average. This guide explains the frequency formula, reach and impression calculations, practical examples, frequency targets, and ways to identify excessive repetition. What Is Ad Frequency? Ad frequency measures how many times an advertisement was shown to each reached person or account … Read more
Cost per acquisition helps marketers understand how much advertising spend is required to generate a conversion. This guide explains the CPA formula, reverse calculations, practical examples, and how to set a target CPA based on business performance. What Is CPA? CPA stands for cost per acquisition or cost per action. It measures the average advertising … Read more
Advertising cost of sales, commonly abbreviated as ACOS, measures advertising cost as a percentage of the sales attributed to advertising. ACOS is widely used when evaluating ecommerce and marketplace advertising, particularly Amazon Ads campaigns. It helps advertisers understand how much they spent on advertising to generate a given amount of attributed sales. The basic formula … Read more
Return on ad spend, commonly abbreviated as ROAS, measures the amount of advertising revenue generated relative to advertising cost. The basic calculation is simple: divide attributed revenue by advertising cost. Interpreting the result correctly is more difficult. ROAS can be written as a percentage, a multiple, or a ratio, and it is often confused with … Read more
Engagement rate measures how actively an audience interacts with content. It can help creators, social media managers, marketers, and advertisers compare posts, evaluate campaigns, and understand whether content is generating meaningful audience response. However, there is no single universal engagement rate formula. Some reports divide engagements by followers. Others use reach, impressions, or video views. … Read more
Conversion rate measures how often an eligible visit, click, user, session, or advertising interaction produces a desired action. A conversion can be a purchase, lead, registration, email signup, download, booking, phone call, completed calculation, copied result, or another action that matters to the organization. If a website receives 10,000 visits and generates 300 purchases, its … Read more
Cost per click, usually abbreviated as CPC, measures the average amount spent for each advertising click. If a campaign costs $500 and receives 1,000 clicks, its average CPC is $0.50. If the same cost produces only 250 clicks, the average CPC is $2. CPC is widely used in search advertising, display advertising, shopping campaigns, social … Read more
CPM measures the cost of one thousand advertising impressions. It is commonly used to evaluate display advertising, video campaigns, social media advertising, sponsorships, and other impression-based media. If a campaign costs $500 and delivers 100,000 impressions, its CPM is $5. If the same campaign delivers only 50,000 impressions, its CPM is $10. CPM makes campaigns … Read more