Know your true hourly earnings from per-line MT pay · Set daily production goals · Compare line-count methods · AHDI standard
| Method | Billable Lines | Payout | Δ vs AHDI baseline |
|---|---|---|---|
| Enter values above to see comparison | |||
Payout shown at your rate per line. AHDI baseline = gross characters ÷ 65 (incl. spaces). The method that pays you most depends on your document type.
Tab 1 — Effective Hourly Rate: Enter your cents-per-line rate and how many lines you actually produce each hour. The tool calculates your gross hourly rate, daily and monthly earnings, and—if you're self-employed—your net take-home after the self-employment (SE) tax and monthly expenses.
Tab 2 — Daily Production Goal: Start with the monthly income you need. Enter your line rate and working days, and the calculator tells you exactly how many lines per day and per hour you must hit—including the gross income needed to cover SE tax and expenses.
Tab 3 — Line-Method Comparison: Paste in your document's character counts. See the billable line count and payout across four methods: AHDI/ASCII 65-char net line, gross printed lines, VBC (visible black characters only), and a 60-char net line. Use this to understand how the same document pays differently under each billing arrangement.
The industry-standard unit of measure in medical transcription is the 65-character line including spaces and punctuation, defined by the Association for Healthcare Documentation Integrity (AHDI) — formerly AAMT. To find line count from a document:
Some employers use different line lengths (60, 70) or gross-line billing. Always verify your contract's definition — a 60-character line gives you more lines for the same text, a 70-character line gives fewer.
Source: Association for Healthcare Documentation Integrity (AHDI)
The Association for Healthcare Documentation Integrity (AHDI) defines one standard medical transcription line as 65 characters including spaces and punctuation. To find line count: take total characters (with spaces) in your document and divide by 65. This is also called the AAMT line or ASCII line.
Most national MT services require a minimum of 1,200 lines per 8-hour shift, which equals 150 lines per hour for traditional transcription. Speech recognition editors typically report 250–350 lines/hour in system metrics, but true productivity is closer to 200–240 lines/hour when accounting for job overhead. Experienced manual MTs with easy dictators can reach 200+ lines/hour.
A gross line is any printed line containing at least one character — even a one-word line counts as a full line. A net line is calculated by dividing total gross characters by a defined line length (usually 65). Gross lines generally pay more because short or partial lines each count fully. To convert: Gross Lines × 0.70 = Net Lines.
VBC stands for Visible Black Character — any character visible to the naked eye, excluding spaces, carriage returns, and hidden formatting. Because VBC excludes spaces (roughly 15–20% of characters in typical medical text), VBC-based billing usually produces fewer billable lines than the AHDI 65-character-including-spaces method, so it reduces pay for the same transcript. Use Tab 3 to compare on your actual document.
Multiply your lines per hour by your cents-per-line rate: 150 lines × $0.08 = $12.00/hr. If self-employed, subtract SE tax (15.3% in the US) and your share of monthly expenses. The calculator on Tab 1 does all of this automatically. Note: the listed SE tax rate is the full self-employment tax; you can deduct half of it from income for income-tax purposes — consult a tax professional for your specific situation.
As a W-2 employee your employer pays half the FICA/SE tax (7.65%), so your gross pay and net pay are closer together. As an IC you pay the full 15.3% SE tax, but you can deduct business expenses and have more scheduling flexibility. At the same per-line rate, an IC needs to produce roughly 18–20% more lines per hour to net the same take-home as a W-2 employee. The goal calculator on Tab 2 adjusts gross income needed automatically.