SIM Card Days Calculator
Work out how many days a SIM data bundle will last.
Quick answer: enter your details below and click Calculate SIM Days — your result appears instantly, right here in your browser. Nothing you enter is uploaded or stored.
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How to use
- Enter the SIM bundle size in gigabytes.
- Enter daily data use in megabytes.
- Click Calculate SIM Days for the cover length.
About this tool
A SIM bundle lasts as long as its data divided by daily use. This calculator divides total gigabytes by daily megabytes to give the days of cover. Heavy days such as video streaming shorten the bundle, so treat the result as an average-use guide.
Frequently asked questions
What uses the most data?
Video streaming and video calls dwarf messaging and maps, so a video-heavy day can halve the expected life.
Should I buy a bigger bundle?
Compare the top-up price with a larger bundle. A small top-up mid-trip often costs more per megabyte than buying bigger upfront.