Water Allowance Calculator

Initial reading (L)

Daily limit (L/day)

Initial date (dd/mm/yyyy)

Current date (dd/mm/yyyy)

Current reading (L)

Days: days = (current_date - initial_date).days. Allowed: days * limit. Daily usage: used / days (0 if days=0). Save writes (today, now, current reading) to MySQL.

Days elapsed

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Daily usage (avg)

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Allowed water

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Used water

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Remaining

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Status

Enter values to calculate

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Usage vs allowance —

If “Remaining” is negative, you exceeded the allowance by that amount.

Recorded readings

Date (dd/mm/yyyy)	Time	Reading (L)
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