Example 1
- checks 12
- check 4 min
- decisions 8
- decision 10 min
- limit 60
1.1 hours above
(12 × 4 + 8 × 10 − 60) ÷ 60 = 1.1 hours above. Alerts sit in the grid.
Inbox time
The calculator uses the numbers you enter: checks, messages that need a decision, and the limit. 12 times 4 plus 8 times 10 minus 60 over 60 is 1.1 hours above. Alerts sit in the grid.
The calculator does not read the inbox and does not send replies. Alerts: unnecessary notifications.
Results
Enter data and click Calculate.
How it works
The calculator adds checks times minutes and messages times minutes, then subtracts the limit and divides by 60. 48 plus 80 minus 60 over 60 is 1.1 hours above.
The main result comes from checks, messages that need a decision, and the limit. After-hours alerts sit in the grid.
Second example: 12 plus 30 minus 80 over 60 is 0.6 hours below. Third: 100 plus 90 minus 60 over 60 is 2.2 hours above.
The calculator does not read the inbox and does not send replies. A comma in 12.5 is read the same way as a period.
Formula
Result = (checks × minutes + messages × minutes − limit) ÷ 60. At 12, 4, 8, 10 and 60: (48 + 80 − 60) ÷ 60 = 1.1 hours above.
What these numbers mean
12 times 4 plus 8 times 10 minus 60 over 60 is 1.1 hours above.
- checks and messages
- Checks are inbox openings. Messages are those that need a decision. In the first example that is 12 of 4 minutes and 8 of 10 minutes.
- limit
- The daily minute threshold you set. Here it is 60 minutes. The result is in hours.
- after-hours alerts
- They are optional and sit in the grid. They do not change the main result.
How to use
- Enter 12 checks.
- Add 4 minutes per check, 8 messages of 10 minutes, and a limit of 60.
- Click Calculate. The result is 1.1 hours above.
- Second example: 4, 3, 3, 10 and 80 is 0.6 hours below. Third: 25, 4, 15, 6 and 60 is 2.2 hours above.
- You can skip after-hours alerts. When you fill them, they appear in the grid and do not change the main result.
Examples
Example 2
- checks 4
- check 3 min
- decisions 3
- decision 10 min
- limit 80
0.6 hours below
(4 × 3 + 3 × 10 − 80) ÷ 60 = −0.6, so 0.6 hours below.
Example 3
- checks 25
- check 4 min
- decisions 15
- decision 6 min
- limit 60
2.2 hours above
(25 × 4 + 15 × 6 − 60) ÷ 60 = 2.2 hours above.
Related calculators
Common questions
What does 1.1 hours above mean?
(12 × 4 + 8 × 10 − 60) ÷ 60 = 1.1 hours above. Alerts sit in the grid.
How is the result calculated?
Result = (checks × minutes + messages × minutes − limit) ÷ 60. At 12 checks of 4 minutes, 8 messages of 10 minutes and a limit of 60 the result is 1.1 hours above.
What is the second example?
(4 × 3 + 3 × 10 − 80) ÷ 60 = −0.6, so 0.6 hours below.
What is the third example?
(25 × 4 + 15 × 6 − 60) ÷ 60 = 2.2 hours above.
What does the calculator not do?
The calculator does not read the inbox and does not send replies. After-hours alerts are optional.
Do all fields enter the main result?
No. The main result comes from checks, messages that need a decision, and the limit. After-hours alerts sit in the grid.
What do checks, messages, and the limit mean?
Checks are inbox openings. Messages are those that need a decision. The limit is the daily minute threshold you set.
Does a comma in 12.5 work?
Yes. 12.5 and 12,5 are read the same way.
Sources
The result comes from the numbers you enter. This is inbox hours versus the limit, not a response-speed score.
Page updated in 2026.