Legal Tenths (0.1 hr) & Consultant Time Tracking
6-Minute Increment Calculator
Convert minutes worked into 1/10th hour (0.1 hr) billable increments using standard legal ceiling rules. Includes live stopwatch timer, multi-entry timesheets, and a 60-minute reference chart.
Direct Answer
How Does the 6-Minute Legal Billing Rule Work?
Under standard American Bar Association (ABA) legal billing guidelines, attorneys and consultants bill time in 6-minute increments (0.10 decimal hours). Any fraction of a 6-minute interval rounds up to the next full tenth. For example, 1 to 6 minutes equals 0.10 hr, 7 to 12 minutes equals 0.20 hr, and 13 to 18 minutes equals 0.30 hr.
Billable Hours = Math.ceil(Minutes ÷ 6) × 0.10 hr | Invoiced Fee = Billable Hours × Hourly Rate
1–6 min → 0.1 hr (1 unit)
7–12 min → 0.2 hr (2 units)
13–18 min → 0.3 hr (3 units)
19–24 min → 0.4 hr (4 units)
Time & Billing Input
Presets:
Calculation Steps (Legal Ceiling Rule)
• Total Minutes: 15 min
• Divide by Increment: 15 ÷ 6 = 2.50
• Apply Ceiling Rounding: CEILING(2.50) = 3 units
• Decimal Hours: 3 × 0.10 hr = 0.30 hr
• Client Invoice: 0.30 hr × 250 = $75.00
Related Legal & Payroll Tools
- Consultant Billable Hours Calculator – Multi-client tax, retainers, & revenue projections.
- Hour to Decimal Conversion Chart – Full hours & minutes conversion lookup.
- Time Clock Conversion for Payroll – Timesheet employee hours & overtime calculator.
- California Waiting Time Penalty Calculator – Labor Code Section 203 penalties.
6-Minute Billing Chart (1–60 Min)
Click any row to test the minute count in the calculator.
| Minutes | Tenths (Units) | Decimal Hours | At $250/hr |
|---|---|---|---|
| 1 min | 1 unit | 0.10 hr | $25.00 |
| 2 min | 1 unit | 0.10 hr | $25.00 |
| 3 min | 1 unit | 0.10 hr | $25.00 |
| 4 min | 1 unit | 0.10 hr | $25.00 |
| 5 min | 1 unit | 0.10 hr | $25.00 |
| 6 min | 1 unit | 0.10 hr | $25.00 |
| 7 min | 2 units | 0.20 hr | $50.00 |
| 8 min | 2 units | 0.20 hr | $50.00 |
| 9 min | 2 units | 0.20 hr | $50.00 |
| 10 min | 2 units | 0.20 hr | $50.00 |
| 11 min | 2 units | 0.20 hr | $50.00 |
| 12 min | 2 units | 0.20 hr | $50.00 |
| 13 min | 3 units | 0.30 hr | $75.00 |
| 14 min | 3 units | 0.30 hr | $75.00 |
| 15 min | 3 units | 0.30 hr | $75.00 |
| 16 min | 3 units | 0.30 hr | $75.00 |
| 17 min | 3 units | 0.30 hr | $75.00 |
| 18 min | 3 units | 0.30 hr | $75.00 |
| 19 min | 4 units | 0.40 hr | $100.00 |
| 20 min | 4 units | 0.40 hr | $100.00 |
| 21 min | 4 units | 0.40 hr | $100.00 |
| 22 min | 4 units | 0.40 hr | $100.00 |
| 23 min | 4 units | 0.40 hr | $100.00 |
| 24 min | 4 units | 0.40 hr | $100.00 |
| 25 min | 5 units | 0.50 hr | $125.00 |
| 26 min | 5 units | 0.50 hr | $125.00 |
| 27 min | 5 units | 0.50 hr | $125.00 |
| 28 min | 5 units | 0.50 hr | $125.00 |
| 29 min | 5 units | 0.50 hr | $125.00 |
| 30 min | 5 units | 0.50 hr | $125.00 |
| 31 min | 6 units | 0.60 hr | $150.00 |
| 32 min | 6 units | 0.60 hr | $150.00 |
| 33 min | 6 units | 0.60 hr | $150.00 |
| 34 min | 6 units | 0.60 hr | $150.00 |
| 35 min | 6 units | 0.60 hr | $150.00 |
| 36 min | 6 units | 0.60 hr | $150.00 |
| 37 min | 7 units | 0.70 hr | $175.00 |
| 38 min | 7 units | 0.70 hr | $175.00 |
| 39 min | 7 units | 0.70 hr | $175.00 |
| 40 min | 7 units | 0.70 hr | $175.00 |
| 41 min | 7 units | 0.70 hr | $175.00 |
| 42 min | 7 units | 0.70 hr | $175.00 |
| 43 min | 8 units | 0.80 hr | $200.00 |
| 44 min | 8 units | 0.80 hr | $200.00 |
| 45 min | 8 units | 0.80 hr | $200.00 |
| 46 min | 8 units | 0.80 hr | $200.00 |
| 47 min | 8 units | 0.80 hr | $200.00 |
| 48 min | 8 units | 0.80 hr | $200.00 |
| 49 min | 9 units | 0.90 hr | $225.00 |
| 50 min | 9 units | 0.90 hr | $225.00 |
| 51 min | 9 units | 0.90 hr | $225.00 |
| 52 min | 9 units | 0.90 hr | $225.00 |
| 53 min | 9 units | 0.90 hr | $225.00 |
| 54 min | 9 units | 0.90 hr | $225.00 |
| 55 min | 10 units | 1.00 hr | $250.00 |
| 56 min | 10 units | 1.00 hr | $250.00 |
| 57 min | 10 units | 1.00 hr | $250.00 |
| 58 min | 10 units | 1.00 hr | $250.00 |
| 59 min | 10 units | 1.00 hr | $250.00 |
| 60 min | 10 units | 1.00 hr | $250.00 |
Showing all 60 minutes with legal ceiling rounding.
Understanding 6-Minute Tenths Billing in Legal Practice
In law firms across the United States, United Kingdom, Australia, and Canada, attorney time is divided into 10 billing increments per hour (6 minutes per increment, or 0.1 hours).
The Ceiling Rule
Unlike standard mathematical rounding, legal retainer contracts specify ceiling rounding. Any fraction of a 6-minute block rounds up to ensure attorneys are compensated for initiating work.
Capturing Micro-Tasks
A 2-minute client phone call or 4-minute email response is billed as 1 tenth (0.1 hr). Firms using tenths capture 15–20% more billable revenue than firms using 15-minute blocks.
Direct Arithmetic
Tenths convert to clean base-10 decimal numbers (0.1, 0.2, 0.3...). Multiplying decimal hours by hourly rates (Hours × Rate = Total Fee) eliminates base-60 invoicing errors.
Standard 6-Minute Billing Increments:
• 1–6 min: 0.1 hr (1 unit)
• 7–12 min: 0.2 hr (2 units)
• 13–18 min: 0.3 hr (3 units)
• 19–24 min: 0.4 hr (4 units)
• 25–30 min: 0.5 hr (5 units)
• 31–36 min: 0.6 hr (6 units)
• 37–42 min: 0.7 hr (7 units)
• 43–48 min: 0.8 hr (8 units)
• 49–54 min: 0.9 hr (9 units)
• 55–60 min: 1.0 hr (10 units)
Frequently Asked Questions
What is a 6-minute increment in legal time billing?
A 6-minute increment is one-tenth (1/10th or 0.1) of an hour. Law firms, solicitors, barristers, and corporate consultants use this system to divide an hour into 10 equal blocks for precise client invoicing.
How does ceiling rounding work for legal billing?
What is the difference between 6-minute tenths and the FLSA 7-minute rule?
Can I export or print my itemized timesheet entries?