LogoCALCULUS
ROI Calculator — Live

YOUR NUMBERS.
YOUR MATH.
YOUR CASE.

Drag the sliders. Watch what your current stack actually costs you.
Industry averages pre-loaded — override with your real numbers.

Your Inputs
$13K/mo
$1K/mo$100K/mo
24 people
2 people500 people
18 deals
1 deals200 deals
Annual Savings
$175K
vs. legacy stack TCO
Hours Recovered
6,365
per year / team-wide
Cost-per-Deal Delta
$812
cheaper per closed deal
ROI Multiple
7.8×
return on Calculus spend
Based on 847 customer migrations · Updated Feb 2026 · Methodology available on request
847
migrations
completed in 2025
$2.3B
in savings
identified for customers
99.97%
uptime
trailing 12 months
11min
response
median support SLA
94%
retention
at contract renewal
2.1×
avg. ROI
across all customer sizes
Trusted by
MERIDIAN OPS
FASTLANE CO.
VORTEX LABS
CARDINAL SYS.
BENCHMARK GRP
IRONCLAD INC.
SUMMIT CRO
AXON DIGITAL
Methodology Note

All calculator figures use conservative estimates. "Legacy Stack" composite = Salesforce Enterprise + HubSpot Professional + Zapier Business + 1 custom integration (typical 20–30 seat GTM team). Hidden overhead (34%) sourced from Gartner TCO research 2024. Hours-per-week figures from McKinsey Global Institute knowledge worker productivity report. Individual results will vary. Calculus pricing as of Feb 2026: $89/user/month, all modules included, no annual commitment required.

Their Stack vs. Ours

THE AUDIT
REPORT.

Eight metrics. Each one sourced, cited, and expandable.
This is what a vendor comparison looks like when it's done honestly.

Onboarding
Integration Time
Legacy Stack
47
Calculus
2
days avg.

Based on 214 enterprise migration audits. "Their Stack" composite of Salesforce + HubSpot + Zapier + custom middleware. Calculus native integrations cover 94% of common GTM toolchains.

Operations
Support Response
Legacy Stack
18h
Calculus
11min
median first reply

Median first-reply SLA measured across 12,000 support tickets Jan–Dec 2025. Legacy composite measured via public SLA commitments and G2 review data.

Reliability
Uptime
Legacy Stack
98.1%
Calculus
99.97%
trailing 12 months

98.1% = 158 hours downtime/year. 99.97% = 2.6 hours. At 24 seats, each hour of downtime costs ~$340 in lost productivity (BLS 2025 knowledge worker rate).

Commercial
Contract Lock-in
Legacy Stack
24mo
Calculus
Month-to-month
minimum term

Salesforce Enterprise requires 12–36 month annual contracts. HubSpot Pro: 12 months. Calculus: cancel any billing cycle, data export included, no exit fees.

Portability
Data Export
Legacy Stack
$2,400
Calculus
$0
avg. migration fee

Salesforce charges $150–$300/hour for data migration services. Average 16-hour engagement per G2 survey. Calculus: one-click CSV/JSON/SQL export, always free.

Cost
Per-Seat Price
Legacy Stack
$247
Calculus
$89
/user/month (blended)

Blended per-seat cost includes primary CRM + automation + analytics + support tooling. Calculus pricing includes all modules. Legacy composite based on 24-seat deal.

Capability
Automation Rules
Legacy Stack
250
Calculus
Unlimited
active workflows

HubSpot Professional: 250 active workflows. Salesforce Flow: 2,000 limit with governor restrictions. Calculus: no hard ceiling, rate-limited only at abuse thresholds.

Developers
API Calls
Legacy Stack
100K/day
Calculus
10M/day
included rate limit

Salesforce Enterprise API: 100K calls/day. Overages billed at $0.20/1K. At typical integration load, this adds $800–$1,200/month in overages for 24-seat teams.

Total Cost of Ownership — Your Numbers

THE RECEIPT.

Everything you entered in the calculator above, distilled into a single total-cost comparison. These are your numbers — we just did the arithmetic.

Monthly Spend
$12,500
Team Size
24 seats
Deals / Month
18
Metric
Legacy Stack
Calculus
Your Gain
Annual Spend
$201K
$26K
−$175K
Cost / Deal
$931
$119
−$812
Hours Lost / Year
7,738h
1,373h
−0h
ROI Multiple
1.0×
0.0×
+-1.0×
Total Annual Savings
Your money, back in your budget
$0
per year
Get your branded PDF breakdown.
One field. Your email. Instant download. No sales call required.