WhatsApp bulk sending limit calculator

Last updated: 12 October 2026

No one can tell you the exact number of messages WhatsApp will allow in a day, because Meta does not publish one. What you can do is choose a volume that fits your own list and your own patience. Put in the numbers below and see how long a batch would take, how many messages that works out to per day, and where the settings start to look risky.

Why there is no official number

Search for "WhatsApp bulk sending limit" and you will find plenty of confident figures. Almost none of them come from Meta. The Business API has documented, per-account throughput tiers, but the consumer app and web.whatsapp.com — which is what a Chrome extension drives — have no published daily ceiling. There is no table to look up, so any exact number you read, including from us, is an estimate rather than a rule.

What does exist is behavioural enforcement. An account tends to get restricted when its activity looks like spam to the people receiving it: messages reported as unwanted, recipients blocking the sender, or conversations that never get a reply because they were never wanted in the first place. That is why the useful question is not "what is the maximum?" but "what pattern does my sending create?"

The four inputs that actually matter

The calculator takes six fields, but four of them do the real work.

• Total recipients. Your list size decides how many days the job takes, and it is the input most worth trimming: a list of people who actually opted in behaves very differently from a scraped one.
• Interval between messages. The gap you leave between sends. A random value between a minimum and a maximum looks more like ordinary use than a fixed pause that ticks like a metronome.
• Daily cap. The most you are willing to send in a day. This is a limit you set for yourself, not one WhatsApp publishes.
• Sending hours per day. How many hours a day you can realistically keep the batch running. This, combined with the interval, sets the ceiling on what one day can hold.

The caution selector does not invent a limit; it just changes the plain-language advice underneath the numbers, from a conservative spread-it-out approach to a warning that short gaps and high volume are the pattern most likely to attract attention.

What to do when your list is bigger than your daily cap

This is the normal case, and the calculator answers it directly: it tells you how many days the list will take and the date you would finish if you started today. Splitting a large list across several days is not a workaround — it is the safer pattern, because the volume on any single day stays modest and the gaps between messages stay wide.

Two practical habits make a multi-day batch run smoothly. Keep a record of who has already been messaged, so a resumed batch never repeats a contact, and start each day's run with the first few sends watched closely. If several fail in a row, stop and fix the numbers rather than letting the rest of the batch fail too. Our guide to sending bulk WhatsApp messages without the Business API covers the rest of the workflow, and the sending-limits guide linked below goes deeper on the behaviour that keeps an account healthy.

Frequently asked questions