Nera Health Tools
Understand your next health step
Educational tools to help you prepare and talk with a clinician — not a diagnosis or a substitute for medical advice.
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Most used
BMI & healthy weight range
Estimate BMI and an approximate healthy weight range.
Glucose unit converter
Convert glucose units accurately — no diagnostic reading.
Due date & gestational age
Estimate due date and gestational age from LMP.
Cigarette pack-year index
Calculate pack-years as a discussion reference.
Questions for your doctor
Build a question list for a clearer visit.
Quick calculators
Weekly activity minutes
Compare weekly activity to a general adult guideline.
BMI & healthy weight range
Estimate BMI and an approximate healthy weight range.
BMR & calorie estimate
Estimate daily energy need — not a diet plan.
Due date & gestational age
Estimate due date and gestational age from LMP.
Estimated average glucose from HbA1c
Estimate average glucose from HbA1c with limits stated.
Exercise heart-rate zone
An estimated training heart-rate range for healthy adults.
Glucose unit converter
Convert glucose units accurately — no diagnostic reading.
Approximate ovulation window
An approximate window — not reliable contraception.
Cigarette pack-year index
Calculate pack-years as a discussion reference.
Waist-to-height ratio
Waist-to-height ratio as preventive guidance.
Approximate daily water need
An approximate fluid range with clear limits.
Visit & procedure prep
Day-surgery prep checklist
Review prep items before day surgery.
Dental visit prep
Prepare documents and questions before a dental visit.
Insurance documents checklist
Review common documents before an insured visit.
Questions for your doctor
Build a question list for a clearer visit.
Browse by specialty
All approved tools
Weekly activity minutes
Compare weekly activity to a general adult guideline.
BMI & healthy weight range
Estimate BMI and an approximate healthy weight range.
BMR & calorie estimate
Estimate daily energy need — not a diet plan.
Day-surgery prep checklist
Review prep items before day surgery.
Dental visit prep
Prepare documents and questions before a dental visit.
Diabetic eye-exam reminder
An eye-exam reminder for people with diabetes.
Due date & gestational age
Estimate due date and gestational age from LMP.
Estimated average glucose from HbA1c
Estimate average glucose from HbA1c with limits stated.
Exercise heart-rate zone
An estimated training heart-rate range for healthy adults.
Fall risk flags
Discussion factors and general home-safety steps.
Glucose unit converter
Convert glucose units accurately — no diagnostic reading.
Insurance documents checklist
Review common documents before an insured visit.
Lifestyle self-check
A quick summary of activity, sleep, and smoking habits.
Approximate ovulation window
An approximate window — not reliable contraception.
Cigarette pack-year index
Calculate pack-years as a discussion reference.
Is this service available at Nera?
Check whether a service is listed at Nera.
Smoking & quit prompts
General quit steps and a path to support.
Which specialty fits my visit?
Find the right specialty for your visit before booking.
Questions for your doctor
Build a question list for a clearer visit.
Waist-to-height ratio
Waist-to-height ratio as preventive guidance.
Approximate daily water need
An approximate fluid range with clear limits.