Coverage Gap Calculator for Vaccination and Screening

For vaccination, screening or enrolment campaigns. Enter the population, current and target coverage and a deadline to see how many people you still need to reach, every day and for every team. Load a program example, from public health to business, to see how it changes.

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Example

Target population eligible people in the area Current coverage (%) Target coverage (%) Deadline date the target must be met Working days per week Teams or sites optional

Still to reach-

Per working day-

Per week-

Per team per day-

FormulaStill to reach = population × (target − current) · Per day = still to reach ÷ working days left

What to do next

Show the working, step by step

Where I used this

With SureCash I helped deliver a government stipend to about 10 million beneficiaries, recognized with a Banking Fair Award of Excellence.

Read the case: Delivering a government stipend to 10 million beneficiaries →

Step beforeMeasure today’s coverage: Survey sample size Next stepIs closing the gap worth it? Prevention ROI Same pillarStaff the help line: Hotline staffing

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Turning the gap into a plan

Daily targets make progress visible. Teams can see each day whether they are on track, instead of discovering a shortfall at the end.
The last mile is slower. People who have not been reached yet are often harder to reach: further away, less trusting, or busier. Front-load effort and plan outreach for them early.
Coverage is a communication problem too. Access gets people to the door; trust and clear information get them through it.

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Racing to close a coverage gap?

Bring your targets to a free 30-minute call. With SureCash I helped deliver a government stipend to about 10 million beneficiaries, and I will help you plan the daily run-rate.

Book a free call

Questions

How do I calculate a coverage gap?

Multiply the eligible population by the difference between target and current coverage. 250,000 people moving from 62% to 85% means reaching 57,500 more people.

Does this work for screening or program enrolment?

Yes. Any target expressed as a share of an eligible population works: vaccination, screening, testing, enrolment or registration.

Why are working days per week an input?

Field teams and clinics rarely work every day. The daily target is spread across the days teams actually work before the deadline.

Coverage gap planner