Free calculators for small business owners

Four honest tools. Real 2025 industry sources cited on every input. No login, no email required to see the math.

Built because most SMB SaaS calculators exist to sell you something — ours show you your actual numbers first, then let you decide what to do about them.

WhatsApp API Real Cost Calculator

See the true monthly cost of WhatsApp Business API across your volume, country, and message mix. Compares real 2026 Meta pricing baseline against BSP markups from Wati, Bird, 360dialog, Chatbot.com, and BossBot. Answers the question our readers ask most often: "how much will this actually cost me?"

Sources: Meta Business Suite official 2026 rates, BSP published pricing pages, Blueticks 2026 breakdown.

Calculate my monthly cost →

Salons · Dentists · Vets · Med-spas

No-Show Cost Calculator

See exactly how much money missed appointments cost your practice per year. 10 vertical presets with industry-baseline no-show rates. Estimates the recovery with BossBot's automated WhatsApp reminders — using the Boston Consulting Group 2025 baseline (17%, not the fake 60% you see elsewhere).

Sources: AgentZap 2026 industry baselines, Boston Consulting Group 2025 (17% reduction), Curogram 2024 physician-loss data.

Calculate my annual loss →

Restaurants · Cafes · Hotels

Restaurant Missed-Call Cost Calculator

43% of restaurant calls go unanswered — 32% at the 5-8pm peak. See what your restaurant loses per year and how much can be recovered with a WhatsApp fallback. 8 venue-type presets from fine dining to food truck. Uses conservative 50% recovery baseline (Hostie AI documented 60-80% in case studies).

Sources: Hostie AI 2025 (43% baseline, $292K case study), QSR Magazine ($20.1B industry loss, 32% peak-hour miss), Yelp Business.

Calculate my recovery →

E-commerce · Shopify · WooCommerce · Etsy

Cart Recovery ROI Calculator

70% of e-commerce carts are abandoned. Email flows recover 3-8% — WhatsApp with 95%+ open rate can lift that to 12-25%. See exactly what the additional revenue looks like for your store, with 8 store-type presets from Shopify small to Shopify Plus.

Sources: Baymard Institute (70.2% abandonment), Klaviyo 2024 email recovery benchmarks, Meta Business Suite WhatsApp open-rate data.

Calculate additional revenue →

Why we built these

Most SaaS calculators are marketing funnels dressed up as tools — inflated recovery numbers, hidden assumptions, sourceless "up to X%" claims. Ours are different for three reasons:

Every input has a cited source. If Baymard says 70.2% cart-abandonment, we cite Baymard. If BCG says 17% no-show reduction, we cite BCG. No invented statistics.
Math runs in your browser. Nothing is sent to us until you explicitly submit your email. If you don't submit, we have no record of your inputs.
Conservative defaults. When sources give a range (e.g. Hostie AI 60-80% recovery), we use the low end. Over-promising is how customers get burned. We prefer to under-promise.

Read our full editorial position at bossbot.uk/for-humans.