# Free calculators for agencies and consultancies

> Four free calculators for the numbers that decide margin in a services firm. Each shows the formula and a worked example, with no signup.

Canonical URL: https://usepike.com/tools
Last updated: 2026-10-25

## The calculators

- [Utilization calculator](https://usepike.com/tools/utilization-calculator): Billable utilization, the gap to target, and what it costs.
- [Billable rate calculator](https://usepike.com/tools/billable-rate-calculator): The hourly rate your costs and margin target require.
- [Project margin calculator](https://usepike.com/tools/project-margin-calculator): Margin so far and hours left on a live project.
- [Capacity calculator](https://usepike.com/tools/capacity-calculator): Free billable hours before you take on new work.

## Which calculator do you need?

| Question | Calculator | Main formula |
| --- | --- | --- |
| Is the team billing enough of its time? | [Utilization calculator](https://usepike.com/tools/utilization-calculator) | Billable hours ÷ available hours |
| What should we charge per hour? | [Billable rate calculator](https://usepike.com/tools/billable-rate-calculator) | Fully loaded cost ÷ billable hours ÷ (1 − margin) |
| Is this project still profitable? | [Project margin calculator](https://usepike.com/tools/project-margin-calculator) | (Fee − labour − expenses) ÷ fee |
| Can we take on new work? | [Capacity calculator](https://usepike.com/tools/capacity-calculator) | Net capacity × target utilization − allocated hours |

## How the numbers connect

Rate, utilization, and margin depend on each other. Your billable rate assumes a utilization level; if the team bills fewer hours, every project needs a higher effective rate to keep its margin. Capacity decides whether new work fits without pushing utilization past what the team can sustain.

The calculators use the same definitions as the [Pike glossary](https://usepike.com/glossary), so a figure in one tool means the same thing in another.

## Questions about the calculators

### Are the calculators free?

Yes. They run in your browser, need no signup, and do not store what you enter.

### Which currency do the calculators use?

Pick USD, EUR, GBP, or DKK in each money calculator. The math is the same in any currency.

### How is this different from tracking the numbers in Pike?

The calculators give a one-off answer from numbers you type in. Pike calculates the same metrics continuously from timesheets, allocations, rates, and costs, by person, project, and client.

## Learn the metrics

- [Glossary](https://usepike.com/glossary): Definitions for agency and consultancy metrics.
- [Agency KPIs and metrics](https://usepike.com/blog/agency-kpis-metrics): Which numbers to track and how often.
- [Billable utilization rate](https://usepike.com/blog/billable-utilisation-rate): A deeper guide to measuring and improving it.