# 6 Free Calculators for Founders and Logistics Teams

> A practical tour of Pyalm's free dilution, SaaS metrics, MRR, dimensional weight, freight allocation, and safety-stock calculators.

- URL: https://www.pyalm.com/blog/free-founder-logistics-calculators
- Author: Fadhil Abdulla
- Category: Free Tools
- Published: 2026-07-18
- Updated: 2026-07-18

---

Good operating decisions usually start with a small, answerable question: *What will this round do to founder ownership? Which weight will the carrier bill? How much did freight add to every unit?* A focused calculator is often faster and safer than rebuilding the formula in a new spreadsheet.

We added six browser-based helpers to the [Pyalm free tools collection](https://www.pyalm.com/free-tools). They require no account and update as you type.

## Three tools for founders

### Funding Dilution Calculator

The [Funding Dilution Calculator](https://www.pyalm.com/free-tools/funding-dilution-calculator) turns a pre-money valuation and investment amount into post-money valuation, new investor ownership, and the founders' retained stake. It is deliberately a simple priced-round model. SAFEs, notes, option-pool changes, and preference terms still belong in a full cap table.

### SaaS Unit Economics Calculator

The [SaaS Unit Economics Calculator](https://www.pyalm.com/free-tools/saas-unit-economics-calculator) brings ARPU, CAC, churn-based LTV, CAC payback, and LTV:CAC into one view. That makes it useful for a monthly operating review: if payback is stretching or LTV:CAC is falling, you immediately know where to investigate.

### MRR Growth Calculator

The [MRR Growth Calculator](https://www.pyalm.com/free-tools/mrr-growth-calculator) reconciles starting MRR through new business, expansion, churn, and contraction. The result includes ending MRR, net new MRR, gross churn, and net revenue retention.

## Three tools for logistics teams

### Dimensional Weight Calculator

Carriers may charge for the space a carton occupies rather than only its scale weight. The [Dimensional Weight Calculator](https://www.pyalm.com/free-tools/dimensional-weight-calculator) compares both and multiplies the chargeable figure across identical packages. Always use the divisor in your carrier tariff.

### Freight Cost per Unit Calculator

The [Freight Cost per Unit Calculator](https://www.pyalm.com/free-tools/freight-cost-per-unit-calculator) combines goods value, freight, insurance, duty, and handling. It then shows total landed cost and the logistics cost added to each unit.

### Safety Stock Calculator

The [Safety Stock Calculator](https://www.pyalm.com/free-tools/safety-stock-calculator) uses maximum and average demand and lead times to estimate a buffer and suggested reorder point.

## Use the result as a decision prompt

A calculator is a model, not an approval workflow. Save the inputs beside the result, record where each number came from, and rerun the calculation when a valuation, carrier tariff, demand pattern, or supplier lead time changes. That small habit turns a quick answer into a repeatable operating decision.