FREE EMAIL PLANNING TOOL

Email Send-Time Calculator

Estimate exactly when an email campaign should finish from SMTP accounts, daily caps, per-message delay, active sending hours, start time, weekend rules and list size.

Finish DateCampaign DurationDaily ThroughputHourly CapacityWeekend RulesScaling Comparison

CAMPAIGN SETTINGS

Build your sending plan

The lower of the daily account limit and delay-based capacity becomes the actual per-account capacity.

SMTP accountsNumber of independent sending accounts. Daily limit per accountMaximum emails each account may send per day. Delay between emails

seconds

Spacing between sends from each account. Active sending hours / day

hours

Daily window during which sending is active. Campaign list sizeTotal recipients in this campaign. Campaign start dateFirst day the campaign may send. Daily sending startLocal clock time used for each sending day. Weekend sending

YesInclude Saturdays and Sundays.

Privacy: all inputs and calculations stay in your browser. No SMTP credentials or campaign data are sent to WPMailDesk.

ESTIMATED FINISH——

Campaign duration—

Daily capacity—

Hourly throughput—

Per-account capacity—

⏱

Delay-based capacity—

▣

Sending days—

✉

Final-day emails—

⌛

Final-day runtime—

⇣

Limiting factor—

Capacity breakdown

See exactly which limits are determining your daily throughput.

SMTP accounts—

Daily limit / account—

Delay / account—

Active window—

List size—

Total daily capacity—

Scaling comparison

Compare the same campaign with fewer or more SMTP accounts.

Accounts	Emails/day	Duration	Finish

Daily schedule preview

A practical view of the first sending days and the final campaign day.

Day	Date	Emails	Runtime	Start	Finish

Operational summary

A plain-language interpretation of the current plan.

Estimate only: Actual delivery completion can differ because providers may throttle, defer, reject, pause or retry messages. Use the result as a planning estimate rather than a guaranteed finish time.