Weight Management Calculations

Weight Management Calculations

Activity Level:


Daily Caloric Requirements:

Body Mass Index: Kg/m2

Body Fat Percentage (BMI estimation formula): (1.20*BMI)-(0.23*Age)-(10.8*gender)-5.4
Males = 1; Females = 0

Ideal Body Weight = 22*(Ht)2

Lean Body Weight (James Formula):


Patient Health Questionaire

Over the last 2 weeks, how often have you been bothered by any of the following problems?

1. Little interest or pleasure in doing things
2. Feeling down, depressed, or hopeless
3. Trouble falling or staying asleep, or sleeping too much
4. Feeling tired or having little energy
5. Poor appetite or overeating
6. Feeling bad about yourself or that you are a failure, or have let yourself or your family down
7. Trouble concentrating on things, such as reading the newspaper or watching television
8. Moving or speaking so slowly that other people could have noticed. Or the opposite, being so figety or restless that you have been moving around a lot more than usual
9. Thoughts that you would be better off dead, or of hurting yourself

Reference: Kroenke K, Spitzer RL, Williams JB. The PHQ-9: validity of a brief depression severity measure. J Gen Intern Med. 2001 Sep;16(9):606-13. PubMed PMID: 11556941; PubMed Central PMCID: PMC1495268.


Generalized Anxiety Disorder

Over the last 2 weeks, how often have you been bothered by any of the following problems?

1. Feeling nervous, anxious, or on edge
2. Not being able to stop or control worrying
3. Worrying too much about different things
4. Trouble relaxing
5. Being so restless that it's hard to sit still
6. Becoming easily annoyed or irritable
7. Feeling afraid as if something awful might happen

Reference: Spitzer RL, Kroenke K, Williams JBW, Lowe B. A brief measure for assessing generalized anxiety disorder. Arch Intern Med. 2006;166:1092-1097

Opioid Equivalence Dosing

Morphine Milligram Equivalent (MME) Calculator

Codeine per day
Fentanyl Transdermal Patch per patch (3 days)
Hydrocodone per day
Hydromorphone per day
Methadone per day
Morphine per day
Oxycodone per day
Oxymorphone per day
Tramadol per day


Benzo Equivalence Dosing

Benzo Equivalence Calculator

Medication mg per day


Adult ADHD

Adult ADHD

What best describes how you have felt and conducted yourself over the past 6 months?

1. How often do you have trouble wrapping up the final details of a project, once the challenging parts have been done?
2. How often do you have difficulty getting things in order when you have to do a task that requires organization?
3. How often do you have problems remembering appointments or obligations?
4. When you have a task that requires a lot of thought, how often do you avoid or delay getting started?
5. How often do you fidget or squirm with your hands or feet when you have to sit down for a long time?
6. How often do you feel overly active and compelled to do things, like you were driven by a motor?
7. How often do you make careless mistakes when you have to work on a boring or difficult project?
8. How often do you have difficulty keeping your attention when you are doing boring or repetitive work?
9. How often do you have difficulty concentrating on what people say to you, even when they are speaking to you directly?
10. How often do you misplace or have difficulty finding things at home or at work?
11. How often are you distracted by activity or noise around you?
12. How often do you leave your seat in meetings or other situations in which you are expected to remain seated?
13. How often do you feel restless or fidgety?
14. How often do you have difficulty unwinding and relaxing when you have time to yourself?
15. How often do you find yourself talking too much when you are in social situations?
16. When you’re in a conversation, how often do you find yourself finishing the sentences of the people you are talking to, before they can finish them themselves?
17. How often do you have difficulty waiting your turn in situations when turn taking is required?
18. How often do you interrupt others when they are busy?

Reference: Adult ADHD Self-Report Scale (ASRS-v1.1) Symptom Checklist

Statistics Calculators

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