OneChat · WhatsApp Business API calculator
Estimate the cost of your WhatsApp Business messages
Estimate your monthly spend by recipient market, template category and delivered-message volume. Ideal for planning campaigns, notifications and authentication with OneChat.

Set up your estimate
Estimate Meta's variable charge using its current official rate card and progressive volume tiers.
CategoryMessages per monthList rateSubtotal
MarketingPromotions, offers and re-engagement.
List rate$0.0125USD
UtilityTransactional updates requested by the customer.Marginal tier applied: 1–100,000 · $0.0008 · list rate
List rate$0.0008USD
AuthenticationLogin codes and identity verification.Marginal tier applied: 1–120,000 · $0.0008 · list rate
List rate$0.0008USD
International authenticationAvailable only in nine markets. The estimate continues from authentication volume already accumulated that month, as Meta specifies.
List rate—Not available
ServiceCustomer-initiated support within the applicable window.
List rate$0.0000USD
Official volume tiers
The subtotal is calculated progressively: each block of messages keeps its tier's rate.
Potentially no-charge messages
Track them separately: they appear in the summary but do not increase the estimated cost.
Incoming messages do not incur a Meta charge.
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