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Freelancer Hourly Rate Calculator

Stop guessing your freelance or consulting rates. Calculate exactly what to charge per hour and day to cover self-employment taxes, business expenses, and paid vacation.

入力パラメータ

ブラウザ内処理のみ

計算結果と分析

計算準備完了 (¥0)

左側の入力フォームに数値を入力すると、リアルタイムで計算結果と推移グラフが生成されます。

Target Hourly Rate: $0.00/hr ($0/day)

Target Hourly Rate$0.00/hr

Break-Even Floor Rate$0.00/hr

Standard Day Rate (8h)$0

Annual Gross Target$0

配分の内訳

Take-Home Pay:$0

Taxes (SE + Federal/State):$0

Business Expenses:$0

戦略的インサイト

主な洞察と次のアクション

Freelancers must factor in self-employment taxes, health insurance, software tools, and unbillable admin time.
Calculates a break-even floor rate and a 25% profit margin target rate.
Guarantees you never quote below sustainable professional standards.

セクション1: 計算の仕組み

この計算の仕組み（わかりやすい解説）

Traditional employees often take their corporate salary and divide it by 2,080 hours to get their hourly rate. As a freelancer, this leads to bankruptcy because employers pay half your payroll taxes, provide health benefits, and pay for 100% of non-billable administrative hours. This tool reverse-engineers gross revenue required from your net desired income.

セクション2: 数式と計算前提

アルゴリズム数式と計算根拠

計算式:

R = f(X_1, X_2, \dots, X_n) \quad \text{subject to standard actuarial bounds}

モデルの前提条件:

Assumes 20 to 30 billable hours per week with remaining time spent on non-billable business operations.
Assumes quarterly estimated tax remittances.

セクション3: 実践的なシミュレーション

Comparative Impact Modeling

戦略的な調整によって将来の推移がどう変わるか確認してください:

戦略 A

Baseline Minimum Strategy

Making scheduled minimum payments without additional principal allocation.

Outcome: Maximum lifetime interest accrual and delayed financial freedom.

戦略 B（最適化）

Accelerated Decision Strategy

Allocating strategic monthly surplus directly to principal reduction.

Outcome: Significant interest reduction and exponential acceleration toward goals.

戦略のポイント: Even modest monthly adjustments create substantial compound savings over multi-year horizons.

セクション4: 例外・境界条件

モデルの制限事項と境界条件

While this engine calculates standard actuarial and consumer finance metrics, real-world finance introduces nuances that no automated model can fully predict:

Assumes tax rates, inflation indices, and APR rates remain static across modeled projections.
Educational estimate; not a formal underwriting commitment from lending institutions.
Excludes localized municipal surtaxes, insurance rider surcharges, or variable-rate APR triggers.

よくあるご質問

よくある質問: Freelancer Hourly Rate Calculator

Why can’t I bill 40 hours a week as a freelancer?

Unless you are an embedded full-time contractor, billing 40 hours is nearly impossible. Client acquisition, drafting proposals, invoicing, bookkeeping, software troubleshooting, and professional development consume 30% to 50% of your working week.

Should I quote hourly or project-based value pricing?

Use your target hourly rate internally to establish project minimums. Once comfortable, quote fixed project pricing or weekly retainers to capture the value of your speed rather than penalizing yourself for working faster.