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Cost Per Day Calculator
Work out the real cost of black seed oil per day, month and year. Compare bottle sizes and see which format gives the best value.
100 days
Bottle lasts
£0.20
Cost / day
£6.08
Cost / month
£73.01
Cost / year
Tip: compare the "cost / day" across bottle sizes rather than the sticker price — larger bottles almost always win on a per-ml basis.
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Add this tool to your site for free — copy the snippet below:
<iframe src="https://blackseed.shop/tools/cost-calculator/embed" width="100%" height="560" style="border:none;border-radius:16px;overflow:hidden" title="Cost Per Day Calculator" loading="lazy"></iframe>
Free to embed on any site — attribution link included automatically.